baber/WOPTO huggingface dataset:
Patent WO-2022151305-A1 (WO)
Title: Power supply circuit, controlling method, lighting device driver and lighting equipment
Inventor: MAO QIUXIANG
IPC: H02M7/12
Filed: 2021-01-15
Abstract: A power supply circuit, a controlling method and a lighting equipment. an input circuit, configured to receive input power and convert the input power into a first direct current (DC) power, the input circuit comprising an input PFC (Power Factor Correction) circuit and a transformer, the input PFC circuit receiving the input power, a primary winding of the transformer being connected to the input PFC circuit, a secondary winding of the transformer outputting the first direct current power; an output regulator, configured to convert the first direct current power into a second direct current power, the second direct current power being used to drive an electric equipment; a controller, configured to output a controlling signal via an output pin according to a first detecting signal or a second detecting signal, the controlling signal being used to generate a feedback signal which is inputted to a feedback pin of a PFC chip of the PFC circuit, the first detecting signal being generated according to status of the input power, the second detecting signal being generated according to status of the output regulator, when failure status of the output regulator is detected, the PFC chip is controlled to lower down the second direct current power, when the input power is DC power, the PFC chip is controlled to lead the second direct current power into a jitter mode.
Patent WO-2022155779-A1 (WO)
Title: Preparation process for epichlorohydrin
Inventor: LI CHAOBO
IPC: C07D303/08
Filed: 2021-01-19
Abstract: A preparation process for epichlorohydrin. The process involves the following steps: (1) a chlorination reaction, wherein glycerol and hydrogen chloride gas are transported to a reaction kettle for a chlorination reaction; and (2) a cyclization reaction, wherein the product obtained from step (1) and a liquid alkali are mixed in a tube mixer for a preliminary cyclization reaction, and then delivered to a cyclization tower to complete the cyclization reaction and to obtain the product. The chromaticity (Pt-Co number) of epichlorohydrin produced by the present method is less than or equal to 20, the water content is less than or equal to 0.060%, and the epichlorohydrin content is greater than or equal to 99.80%.
Patent WO-2021147876-A1 (WO)
Title: Memory resource in-situ sharing decision-making system and method
Inventor: LI XINQI
IPC: G06F9/50
Filed: 2021-01-20
Abstract: A memory resource in-situ sharing decision-making system for use in a data processing system, comprising: an original sharing relationship tree generating assembly (110), used for generating one or a plurality of sharing relationship trees (00, 01, ..., n) on the basis of sharing labels (00, ..., 04, 05) of all of the task nodes (00, 01, 02, 03, 04, 05) during a task topology generating process of the data processing system; a sharing conflict identification assembly (120), used for identifying a sharing relationship tree having a first sharing conflict state or a second sharing conflict state as a conflicted sharing relationship tree containing conflicting sharing connection edges; and a sharing conflict elimination assembly (130), used for eliminating the sharing conflict of the identified conflicted sharing relationship tree by means of disconnecting at least one modifiable sharing connection edge in the first sharing conflict state or disconnecting one or a plurality of sharing connection edges having a sharing conflict with one another in the second sharing conflict state.
Patent WO-2021190195-A1 (WO)
Inventor: HUANG LISHAN
IPC: H01Q1/24
Filed: 2021-02-09
Abstract: The present disclosure relates to the technical field of wireless communications, and specifically relates to a metal-framed antenna device and a mobile terminal. The metal-framed antenna device provided in the present disclosure comprising: a first metal-framed antenna having a first ground point; a second metal-framed antenna having at least one second ground point, wherein there is a first break joint between the second metal-framed antenna and the first metal-framed antenna; and a first adjustable circuit connected across both ends of the first break joint. According to the metal-framed antenna device provided in the present disclosure, an adjustable circuit is connected across a break joint of the metal-framed antenna, and the physical length of the metal-framed antenna can be adjusted by changing the state of the adjustable circuit, such that the physical length of the antenna can be flexibly changed as needed, and the antenna can cover multiple frequency bands by means of only a few adjustable circuits, thereby saving hardware costs.
Patent WO-2022183326-A1 (WO)
Inventor: LV XIMIN
IPC: G06T7/20
Filed: 2021-03-01
Abstract: 本发明实施例提供一种滤波方法、装置、可移动平台和存储介质，该方法包括：获取受无人机的螺旋桨振动影响的时域感知信号，以及无人机的电机旋转频率；对时域感知信号进行频域变换，以得到感知信号频率与感知信号能量的对应关系；基于感知信号频率与感知信号能量的对应关系，确定多种倍频各自对应的感知信号能量，多种倍频是指与电机旋转频率呈多种倍数关系的感知信号频率；根据多种倍频各自对应的滤波器的阈值，开启感知信号能量大于对应阈值的倍频所对应的第一滤波器，且关闭感知信号能量小于对应阈值的倍频所对应的第二滤波器。本发明设计的滤波器的合理性较高，能够较好的滤除振动激励产生的干扰信号能量，从而提高飞行控制系统的控制性能。
Patent WO-2021175270-A1 (WO)
Inventor: JIANG LEI
IPC: A61P35/00
Filed: 2021-03-03
Abstract: The present invention provides an HPK1 kinase inhibitor, the preparation thereof and use thereof. Specifically, the present invention provides a compound as represented by formula I. The definitions on groups are as stated in the description. The compound has excellent HPK1 inhibitory activity, and therefore can be used for preparing a pharmaceutical composition for treating cancer and other diseases related to HPK1 activity.
Patent WO-2021190503-A1 (WO)
Inventor: FU YANYUN
IPC: H04L45/02
Filed: 2021-03-23
Abstract: Disclosed in the present application is a method for generating a network topology, comprising: determining a plurality of designated devices in a network, wherein the plurality of designated devices are connected directly or indirectly by means of ports; determining, in the plurality of designated devices, reachable devices corresponding to the ports of the designated devices, wherein the reachable devices corresponding to the ports of the designated devices are directly or indirectly connected to the designated devices by means of the ports; determining a root node device in the plurality of designated devices according to the number of reachable devices corresponding to the ports of the designated devices; determining the directly connected designated devices in the plurality of designated devices according to the reachable devices corresponding to the ports of the designated devices; and generating a topological structure of the plurality of designated devices in the network according to the root node device in the plurality of designated devices and the directly connected designated devices. Therefore, the topological structure of the plurality of designated devices in the network is automatically generated according to the reachable devices corresponding to the ports of the plurality of designated devices in the network, and the method is simple, efficient and high in accuracy.
Patent WO-2021238379-A1 (WO)
Inventor: Tan Liangwen
IPC: H01M50/249
Filed: 2021-03-26
Abstract: Bloc-batterie (100), comprenant un support (10), un espace de réception (11) étant formé sur le support (10), et une paroi latérale de l'espace de réception (11) étant pourvue d'un trou traversant (12) ; un réseau de batteries (20), le réseau de batteries (20) étant disposé dans l'espace de réception (11), le réseau de batteries (20) comprenant de multiples batteries (21) disposées en séquence, et le côté de chaque batterie (21) faisant face au trou traversant (12) étant pourvu d'une borne d'électrode (22) ; et un connecteur électrique (30), le connecteur électrique (30) étant disposé dans l'espace de réception (11) et connecté aux bornes d'électrode (22) d'au moins deux batteries, et le trou traversant (12) permettant aux bornes d'électrode (22) et au connecteur électrique (30) d'être apparents.
Patent WO-2022141900-A1 (WO)
Inventor: WANG HUIYING
IPC: G06F1/18
Filed: 2021-04-01
Abstract: An intelligent information processing device for a data center, comprising a device body (1). A removal mechanism is provided on one side of the device body (1); the removal mechanism comprises a sliding groove (3); the sliding groove (3) is formed in the surface of one side of the device body (1); a maintenance plate (2) is provided on the inner side of the sliding groove (3), and a limiting groove (8) is formed in the surface of the top of the inner side of the sliding groove (3); springs (7) are disposed inside the limiting groove (8); a limiting block (5) is provided at the bottom of the springs (7); and a fixing groove (9) is formed in the outer side of the inner wall of the maintenance plate (2) where the bottom of the limiting block (5) is located. By means of the designed removal mechanism, a shifting block (6) is stirred upwards, and then the maintenance plate (2) is pulled, so that an operation of removing the maintenance plate (2) can be implemented. At present, the maintenance plate (2) of the information processing device is fixedly connected by means of multiple screws, and when the maintenance plate (2) needs to be removed by a person to maintain the device, the time consumed is long and the efficiency is reduced, and therefore, by means of the designed mechanism, when a person removes the maintenance plate (2), time can be saved, so that the efficiency of removal is improved.
Patent WO-2021253936-A1 (WO)
Title: User equipment, base station, and channel estimation and feedback system for user equipment and base station
Inventor: WANG XIN
IPC: H04L1/00
Filed: 2021-04-09
Abstract: A user equipment, a base station, a joint training device for a user equipment and a base station, a joint channel estimation and feedback system for a user equipment and a base station, a feedback channel state information generation method executed by a user equipment, a channel matrix generation method executed by a base station, a joint training method for a user equipment and a base station, and a joint channel estimation and feedback method for a user equipment and a base station in wireless communication. Feedback channel state information is generated by a user equipment according to an actual pilot signal, and a deeper residual learning neural network is introduced into a base station to reconstruct a channel matrix of the base station according to the feedback channel state information. As such, it is possible that the base station can reconstruct a complete high-resolution channel matrix even if an actually received pilot signal is an incomplete low-resolution part.
Patent WO-2021213253-A1 (WO)
Inventor: GESANG WANGJIE
IPC: B60W20/14
Filed: 2021-04-16
Abstract: An ACE heavy truck level-IV fuel-saving robot system. By commanding an electric power split device (ePSD) (123) by means of a vehicle control unit (VCU), a flow path, an amplitude, or a direction of a hundred-kilowatt-level electric power can be accurately and continuously adjusted among three electric power sources, i.e., an engine-generator set, battery packs (130a, 130b), and drive motors (140, 170) within a ten-millisecond system response time. In an ACE heavy truck, a clutch can be commanded by means of a VCU to be disconnected or connected to respectively achieve a series hybrid mode and a parallel hybrid mode. The ePSD (123) is configured as a power electronic network having three ports, the first port of the ePSD is in an alternating-current bidirectional electrical connection with an output end of a generator set, the second port of the ePSD is in an alternating-current bidirectional electrical connection with at least one drive motor (MG2), and the third port of the ePSD is in a direct-current bidirectional electrical connection with at least one power-type battery pack, and is also in a direct-current unidirectional electrical connection with a brake resistor (131).
Patent WO-2022073339-A1 (WO)
Inventor: WANG HONGKUI
IPC: A61M16/00
Filed: 2021-04-27
Abstract: 一种等量吸气仪（40），包括氧气源（404）、节流阀（403）、阀门组、柔性气囊（401）、刚性容器（402）、充气泵（405）、面罩组件，以及系统控制器（415）。柔性气囊（401）安装在刚性容器（402）内，氧气源（404）输出的高压氧气通过节流阀（403）和电磁阀能够以固定速率向柔性气囊（401）内充气，系统控制器（415）通过控制充气时间精确地向柔性气囊（401）内充入一定量的氧气；充气泵（405）能够使刚性容器（402）内的气压高于一个大气压。面罩组件包括面罩主体（409）和面罩同步开关。每当进行CT扫描前，使用该等量吸气仪（40）能够让患者吸入等量的气体，从而减少或消除呼吸误差，对用CT引导做介入治疗或穿刺活检具有重要意义。
Patent WO-2022226920-A1 (WO)
Title: 免疫检测装置及免疫检测方法
Inventor: LIU HAONAN
IPC: G01N35/00
Filed: 2021-04-29
Abstract: 一种免疫检测装置及免疫检测方法，其中，免疫检测装置包括：壳体（10）、驱动组件、检测芯片（80）和储液室（20）；所述壳体（10）具有第一容纳部（10a）和第二容纳部（10b），所述驱动组件设置在所述第一容纳部（10a）中，所述储液室（20）设置在所述第二容纳部（10b）中，所述储液室（20）至少用于存储试剂；所述驱动组件用于将所述储液室（20）的出液口与所述检测芯片（80）的进液口连通，并驱动所述储液室（20）中的试剂进入所述检测芯片（80）中。
Patent WO-2022183586-A1 (WO)
Inventor: DENG GUO
IPC: B29C33/00
Filed: 2021-05-07
Abstract: 一种人造石面板的制作方法及模具，其过程为：1)在成型模具模腔内部安装垫板，垫板底部与成型模具底面贴合固定，垫板四边至少有一个边的侧边留有间隙以形成人造石面板的加厚边缘；2)在成型模具内表面和垫板外露表面粘贴离型纸；3)注入混合搅拌好的原料填充进模具中，排气并平整表面；4)成型模具上表面盖上离型纸纸和网隔，推进真空高压机进行压平压实；5)取掉上表面的离型纸和网隔，盖上盖板，进入翻转机翻转脱模；6)去除人造石半成品底部贴纸，然后进入固化机加热固化定型；7)固化定型完成后切割定型；8)外观面打磨抛光；9)成品表面粘贴保护膜。本发明具有人造石台面加厚边缘免粘接省工效率高和一体成型更美观的有益技术效果。
Patent WO-2021249197-A1 (WO)
Inventor: WANG ZHOU
IPC: G16H50/30
Filed: 2021-05-27
Abstract: L'invention concerne un procédé de traitement de données, un appareil de traitement de données, et un appareil de gestion de la santé. Le procédé de traitement de données consiste : à procéder à un traitement de données sur des données associées au dispositif à partir d'un dispositif associé à un appareil de gestion de la santé. L'appareil de traitement de données et l'appareil de gestion de la santé peuvent améliorer l'uniformité de mémoires destinées à être associées à l'appareil de gestion de la santé.
Patent WO-2022001531-A1 (WO)
Title: Method for patterning light emitting layer, and method for manufacturing light emitting diode device
Inventor: ZHANG XIAOYUAN
IPC: H01L51/56
Filed: 2021-05-28
Abstract: Provided are a method for patterning a light emitting layer (204, 304, 504) and a method for manufacturing a light emitting diode device. The method for patterning a light emitting layer (204, 304, 504) comprises: providing a base substrate (201, 301, 401, 501); forming a first electrode layer (202, 302, 402, 502) on the base substrate; forming a sacrificial layer (203, 303, 403, 503) on the first electrode layer (202, 302, 402, 502); designing a pattern for the sacrificial layer (203, 303, 403, 503), so as to remove the sacrificial layer (203, 303, 403, 503) in a first region (2031, 3031, 4031) on the base substrate (201, 301, 401, 501) and preserve the sacrificial layer (203, 303, 403, 503) in a second region (2032, 3032, 4032) on the base substrate (301, 301, 401, 501), wherein the first electrode layer (202, 302, 402, 502) is at least partially located in the first region (2031, 3031, 4031); forming a first auxiliary charge carrier layer in the first region (2031, 3031, 4031) and the second region (2032, 3032, 4032); forming a light emitting layer (204, 304, 504) on the first auxiliary charge carrier layer; and removing the sacrificial layer (203, 303, 403, 503) preserved in the second region (2032, 3032, 4032), and the first auxiliary charge carrier layer and the light emitting layer (204, 304, 504) covering said preserved sacrificial layer (203, 303, 403, 503), and preserving the first auxiliary charge carrier layer and the light emitting layer (204, 304, 504) in the first region (2031, 3031, 4031), so as to pattern the light emitting layer (204, 304, 504). Further provided is a method for manufacturing a light emitting diode device (100).
Patent WO-2022246850-A1 (WO)
Inventor: ZHANG YUXIN
IPC: G08G1/01
Filed: 2021-05-28
Abstract: 一种数据处理方法、数据采集方法、平台、无人机及系统，该方法包括：获取目标路段的位置信息(S101)；根据目标路段的位置信息生成无人机控制指令(S102)获取无人机采集到的所述观测数据，并根据观测数据，确定目标路段上的一个或者多个交通参与者的运动信息(S103)；根据交通参与者的所述运动信息，在观测数据中标记目标数据片段(S104)。该方法能够降低观测数据局限性，提高观测数据的准确性。
Patent WO-2022252164-A1 (WO)
Inventor: KATSURAGI DAIGO
IPC: G02B15/16
Filed: 2021-06-02
Abstract: L'invention concerne un ensemble lentille d'imagerie (21) comprenant un premier groupe de lentilles (311) pour le tir à une courte distance focale, un deuxième groupe de lentilles (312) pour le tir à une longue distance focale, un troisième groupe de lentilles (32) pour le tir à la courte longueur focale et la longue distance focale, un premier miroir (331) positionné entre le premier groupe de lentilles (311) et le troisième groupe de lentilles (32) ; et un second miroir (332) positionné entre le deuxième groupe de lentilles (312) et le troisième groupe de lentilles (32). Le premier groupe de lentilles (311) et le deuxième groupe de lentilles (312) changent sa position dans une direction d'axe optique entre un état de prise de vue et un état de stockage de lentille. Le premier miroir (331) ou le second miroir (332) forme un trajet optique reliant optiquement un groupe de lentilles correspondant et le troisième groupe de lentilles (32). Le premier miroir (331) ou le second miroir (332) fixent un espace de stockage pour le groupe de lentilles correspondant.
Patent WO-2022083155-A1 (WO)
Title: 一种高炉铁口工作状态的自动检测方法、系统及存储介质
Inventor: WU YINGJIANG
IPC: G06K9/00
Filed: 2021-06-23
Abstract: 一种高炉铁口工作状态的自动检测方法、系统及存储介质，涉及冶金自动化领域，所述方法包括以下几个步骤：在正对铁口的位置安装红外摄像头和可见光摄像头，进行图像采集；采集可见光摄像头中的图像，识别可见光图像中的开口机和泥泡的位置；采集红外摄像头中的图像，标定红外摄像头中的铁口位置，及识别所述铁口位置的温度；通过图像识别检测开口机和铁口的相对位置及检测铁口位置的温度，能够准确记录开口机开始作业时间、铁口打开时间、铁口堵口时间和铁口见渣时间等时间，从而对高炉的出铁情况进行实时的管理。
Patent WO-2022227263-A1 (WO)
Inventor: DENG BIAO
IPC: E04G21/04
Filed: 2021-06-29
Abstract: Flèche de pliage, dispositif de flèche et machine d'exploitation. La flèche de pliage comprend une partie intermédiaire (100) et des parties d'extension (200). La partie intermédiaire (100) est conçue pour être reliée à des composants externes ; et les parties d'extension (200) ont chacune une première paroi latérale (210) et une seconde paroi latérale (220) disposée à l'opposé, la première paroi latérale (210) affleure la partie intermédiaire (100), et la seconde paroi latérale (220) est pliée à partir de la partie intermédiaire (100) vers la direction proche de la première paroi latérale (210), deux parties d'extension (200) existant, et les deux parties d'extension (200) sont respectivement reliées à des extrémités opposées de la partie intermédiaire (100). Dans la flèche de pliage (10), la fourniture de la partie intermédiaire (100) et des parties d'extension (200) qui fonctionnent conjointement les unes avec les autres peut empêcher une concentration de contrainte au niveau de la partie intermédiaire (100), ce qui permet d'améliorer l'état de contrainte de la flèche de pliage, améliorant ainsi la durabilité de la flèche de pliage, du dispositif de flèche et de la machine d'exploitation.
Patent WO-2022217776-A1 (WO)
Title: Natural-rubber packing and feeding manipulator
Inventor: LI ZHENHUA
IPC: B29B15/02
Filed: 2021-07-23
Abstract: A natural-rubber packing and feeding manipulator, which comprises a mechanical arm (100) and a connecting box (110), wherein a rotating disc (130) driven by a stepping electric motor (120) is provided at the lower end of the connecting box (110), and four clamping assemblies are uniformly distributed at the lower end of the rotating disc (130) in a circumferential direction; a feeding table (300), a weighing platform (400), a rubber cutting mechanism (500) and a packing table (600) are arranged below the rotating disc (130) at equal intervals in a rotation direction of the rotating disc (130); the weighing platform (400) is in signal connection with a controller, and the controller is in signal connection with the clamping assemblies and the rubber cutting mechanism (500); the rubber cutting mechanism (500) comprises a support (510), a conveying belt (520) and a baffle (530); two sides of the support (510) are provided with jacking blocks (542) driven by a second air cylinder (541); a mounting frame (550), which is driven by a driving mechanism to move forward and backward, spans the conveying belt (520); and the mounting frame (550) is provided with a cutter (561).
Patent WO-2022151701-A1 (WO)
Inventor: LI ZHIHUA
IPC: H02J3/16
Filed: 2021-07-27
Abstract: 本申请公开了一种变电站电压的自动控制方法及装置。变电站电压的自动控制方法包括：获取变电站的实时数据，并根据所述实时数据将所述变电站中的设备划分为至少一个控制单元；根据所述控制单元中主变压器低压侧的无功网损灵敏度，对每个所述控制单元进行调节校验；并且根据校验结果生成和记录该控制单元的控制策略；根据所述控制策略对对应的所述控制单元进行调节。本申请实施例可以有效降低网损。
Patent WO-2022037377-A1 (WO)
Inventor: SUN FAJUN
IPC: G01B7/30
Filed: 2021-07-28
Abstract: 一种阀门旋转角度检测装置，包括：被检测组件（1）、与被检测组件（1）对应设置的传感器组件（2）以及与传感器组件（2）相连接的控制器（3）；其中，被检测组件（1）设置在减速电机的齿轮上；减速电机用于驱动阀门旋转；传感器组件（2）设置在减速电机的外壳上，用于每当在预设检测区域中检测到被检测组件（1）时，使控制器获得一个脉冲信号；控制器用于基于获取到的脉冲信号的数量，确定阀门的旋转角度，进而基于预设的减速比精确调节阀门的旋转角度。检测误差很小，精确度很高。还提供一种减速电机系统和一种阀门系统。
Patent WO-2022037388-A1 (WO)
Inventor: CAI MENG
IPC: G10L13/08
Filed: 2021-07-30
Abstract: A voice generation method and apparatus, an electronic device, and a computer readable storage medium. Said method comprises: performing speaker segmentation on an original voice to determine starting time and ending time of each speaking voice segment in the original voice, so as to obtain segmented voices (201); determining a voiceprint feature vector corresponding to each speaking voice segment in the original voice (202); converting a text corresponding to each speaking voice segment in the original voice into a target language text, to obtain a target language text corresponding to each speaking voice segment in the original voice (203); and generating a target voice on the basis of the starting time and the ending time of each speaking voice segment in the original voice, the voiceprint feature vectors corresponding to the speaking voice segments and the target language texts corresponding to the speaking voice segments (204). Said method can achieve automatic conversion of audios and videos in a first language into audios and videos in a second language.
Patent WO-2023272934-A1 (WO)
Inventor: LI RAN
IPC: F04B17/03
Filed: 2021-09-06
Abstract: L'invention concerne une extrémité hydraulique de pompe à émulsion et une pompe à émulsion. Une extrémité hydraulique de pompe à émulsion (120) comprend : un corps de soupape (10), le corps de soupape (10) ayant de multiples chambres de soupape, les chambres de soupape comprenant un premier trou de montage (101), une chambre de piston (102), un deuxième trou de montage (103) et un troisième trou de montage (104) en communication en séquence le long d'une direction de hauteur du corps de soupape (10), des ouvertures du premier trou de montage (101), du deuxième trou de montage (103) et du troisième trou de montage (104) augmentant en séquence. L'extrémité hydraulique de pompe à émulsion est pratique à démonter et à assembler, la maintenance est simple, le temps de maintenance et les coûts sont réduits, et un endommagement du corps de soupape peut être réduit.
Patent WO-2023029059-A1 (WO)
Inventor: LIAO HUI
IPC: H01L31/18
Filed: 2021-09-07
Abstract: La présente invention se rapporte au domaine technique des batteries N-TOPCon, et concerne un procédé d'élimination du silicium polycristallin plaqué sur la face arrière d'une batterie N-TOPCon. Le procédé comprend les étapes suivantes consistant à : déposer une couche d'oxyde tunnel et du silicium amorphe intrinsèque sur la face arrière d'une tranche de silicium ; soumettre le silicium amorphe intrinsèque à un dopage au phosphore, et effectuer un recuit primaire de manière à cristalliser le silicium amorphe intrinsèque en silicium polycristallin dopé au phosphore ; soumettre la tranche de silicium résultant du recuit primaire à un traitement anticorrosion BPSG ; et nettoyer séquentiellement la face avant de la tranche de silicium soumise au traitement anticorrosion à l'aide d'une solution d'acide fluorhydrique et d'une solution alcaline pour éliminer le silicium polycristallin plaqué sur la face arrière. Dans la présente invention, en ajoutant l'étape du traitement anticorrosion BPSG avant d'éliminer le placage sur la face arrière, la corrosion d'une zone BPSG sur la face avant de la tranche de silicium peut être évitée pendant l'élimination du placage sur la face arrière ; par conséquent, une batterie d'apparence relativement bonne est obtenue, et la batterie présente des performances relativement bonnes.