baber/WOPTO huggingface dataset:
Patent WO-2021093151-A1 (WO)
Title: Electrocardiogram integrated acquisition device
Inventor: ZHAO DEZHENG
IPC: A61B5/308
Filed: 2020-01-08
Abstract: An electrocardiogram integrated acquisition device, comprising a main body portion (1), limb guide portions (2), a chest guide portion (3) and electrodes (4); the limb guide portions (2) are connected to the main body portion (1), one end of the chest guide portion (3) is connected to the main body portion (1), and there are several electrodes (4), which are respectively provided on one end of the limb guide portions (2), the main body portion (1) and the chest guide portion (3). Lead wires are integrated with the electrodes (4) to form an acquisition device, all lead wire connection lines are integrated inside, and there are no disordered lead wires outside; a socket for connecting with an electrocardiograph is provided on the main body portion (1), and the acquisition device is connected to the electrocardiogram instrument by means of a lead wire, so that the connection is convenient. The limb guide and chest guide portions (2, 3) which are bent, adjusted by extending or retracting and detachable according to different sizes of human bodies facilitate storage and transportation, and ensure the accuracy of signal acquisition. After the limb guide portions (2) are detached from the main body portion (1), the main body portion (1) can also be in insertion fit with a wire pin electrode (5), allowing flexible use and convenient operation, and achieving quick diagnosis.
Patent WO-2020181941-A1 (WO)
Inventor: ZHANG BING
IPC: G02F1/13357
Filed: 2020-02-11
Abstract: La présente invention concerne une source de rétroéclairage et son procédé de fabrication, un module de rétroéclairage et un dispositif d'affichage. La source de rétroéclairage comprend : un substrat, une pluralité de micro-diodes électroluminescentes situées sur le substrat, et une structure réfléchissante, la structure réfléchissante étant située au niveau d'un espace parmi la pluralité de micro-diodes électroluminescentes, et la structure réfléchissante comprenant une couche métallique réfléchissante et une couche diélectrique scellant la couche métallique réfléchissante.
Patent WO-2021142932-A1 (WO)
Title: Mounting crossbeam, box assembly and laundry processing device
Inventor: LV FENGYAN
IPC: D06F39/12
Filed: 2020-03-23
Abstract: A mounting crossbeam (25), a box assembly (200) and a laundry processing device (100). The mounting crossbeam (25) comprises: a mounting crossbeam body (251), the mounting crossbeam body (251) being suitable for being secured onto a supporting structure of the laundry processing device (100), and the mounting crossbeam body (251) being provided with a detergent drawer mounting area (2511); and a bearing plate (252), the bearing plate (252) being provided on the mounting crossbeam body (251) and corresponding to the position of the detergent drawer mounting area (2511) for supporting a detergent drawer (30).
Patent WO-2021062990-A1 (WO)
Inventor: ZENG DEZHENG
IPC: H04N21/44
Filed: 2020-04-07
Abstract: 一种视频分割方法、装置、设备及介质，所述方法包括：获取待分割视频，确定所述待分割视频中的知识点数据与所述待分割视频中的视频帧之间的对应关系（S110）；根据所述对应关系对所述待分割视频进行分割，得到至少一个视频片段（S120）。
Patent WO-2021212366-A1 (WO)
Inventor: ZHANG ANBANG
IPC: H01L29/778
Filed: 2020-04-22
Abstract: A semiconductor device and a manufacturing method therefor. The semiconductor device comprises a semiconductor heterostructure layer (110) and a conductive structure (130). The semiconductor heterostructure layer (110) comprises alternate first semiconductor material layers (111) and second semiconductor material layers (112), wherein two-dimensional hole gas (2DHG) can be generated between each adjacent first semiconductor material layer (111) and second semiconductor material layer (112). The conductive structure (130) comprises a plurality of conductive fingers (131, 132, 133) which extend from the surface of the semiconductor heterostructure layer (110) into the semiconductor heterostructure layer (110), wherein the plurality of conductive fingers (131, 132, 133) are arranged along a first direction which is substantially parallel with the surface, and the length of the plurality of conductive fingers (131, 132, 133) increases incrementally along the first direction, such that the ends (131E, 132E, 133E) of the respective conductive fingers (131, 132, 133) are positioned in the second semiconductor material layers (112) at different depths and do not contact the two-dimensional hole gas (2DHG).
Patent WO-2020221166-A1 (WO)
Inventor: LI YONG
IPC: G01C11/04
Filed: 2020-04-26
Abstract: Provided is an underwater robot type submerged plant coverage meter for deep waters, comprising an underwater robot body (1), a GPS positioning device (2), an embedded central processing unit, a wide-angle image sensor (3), a gyroscope (4), a sonar detector (5), a depth adjuster (6), a hand-operated display screen (8), and a high-performance storage device (7). The embedded central processing unit is mounted in the underwater robot body (1); the GPS positioning device (2) is mounted on the top of the underwater robot body (1); the wide-angle image sensor (3), the gyroscope (4), and the sonar detector (5) are combined and mounted at the front end of the underwater robot body (1); the depth adjuster (6) is mounted at the rear end of the underwater robot body (1). The coverage meter solves the problem of being difficult to quickly and accurately monitor the distribution and coverage statistics of the submerged plants in the environment of deep waters without destroying the original community structure, and provides strong data support for scientifically and objectively evaluating ecological health of deep waters.
Patent WO-2021077712-A1 (WO)
Inventor: PANG WEI
IPC: H03H9/02
Filed: 2020-05-06
Abstract: 本发明涉及一种体声波谐振器，包括：基底；声学镜；底电极；顶电极；和压电层，设置在底电极与顶电极之间，其中：底电极和顶电极中的一个为第一间隙电极，第一间隙电极具有第一电极与第二电极，第一电极与压电层面接触，第二电极远离压电层，且空隙层在谐振器的厚度方向上位于第一电极与第二电极之间，第一电极与第二电极在电连接部处电连接，电连接部限定空隙层的边界的至少一部分。谐振器还包括电学隔离部，电连接部在谐振器的厚度方向上的投影落入电学隔离部之内，电学隔离部的内侧用于限定谐振器的有效区域在谐振器的横向方向上的边界。本发明还涉及一种具有上述谐振器的滤波器以及具有该滤波器或谐振器的电子设备。
Patent WO-2021253409-A1 (WO)
Inventor: ZHOU BIBO
IPC: C02F3/28
Filed: 2020-06-19
Abstract: 本发明公开了一种高效反硝化滤池系统及工作方法，涉及环境保护、污水处理领域，包括罐体、滤板、布水系统、工作进水管、工作排水管和反洗排水管；所述滤板设置在罐体内部，滤板下方通过第一竖向支撑和第二竖向支撑；滤板上方从下至上依次设置有承托层和填料系统；填料系统上方设置有布水系统；所述工作进水管与布水系统相通，工作排水管用来排出经过填料系统和承托层的污水；所述反洗排水管用来排出反洗后的水。本发明采用低强度水冲洗使滤床处于微膨胀状态，达到驱气的目的；高强度水冲洗，使滤床处于硫化状态，达到反冲洗脱膜的目的。整个过程没有空气参与，系统反硝化速率不受进水和反冲洗的影响。
Patent WO-2021232568-A1 (WO)
Title: Method, terminal and system for transceiving data over wireless local area network, and network access device
Inventor: WU HAO
IPC: H04W24/02
Filed: 2020-07-16
Abstract: Disclosed are a method, terminal and system for transceiving data over a wireless local area network, and a network access device. The method for transceiving data over a wireless local area network comprises: configuring a parameter MaxBuffer; a terminal calculating the volume of data to be sent, which data is cached locally, and when the volume of data is greater than or equal to the MaxBuffer, sending request signaling to a network access device; after receiving the request signaling, the network access device reading parameters in the request signaling, confirming, according to the read parameters, whether the terminal uses a multilink, and sending, to the terminal, response signaling including the confirmation regarding whether the terminal uses a multilink; and after receiving the response signaling, the terminal reading the parameters in the response signaling, and performing data transceiving according to the read parameters and local capability parameters. According to the present application, multi-link configuration can be dynamically performed according to the detection of service data and a link state of a network, such that wireless resources are rationally requested while a high-speed service is ensured, and the wasting of resources is avoided while the transmission of the service data is ensured.
Patent WO-2021023010-A1 (WO)
Inventor: XIE BIN
IPC: B21D39/03
Filed: 2020-07-22
Abstract: A splicedly formed lithium strip, a preparation method therefor, and a negative pole (52), lithium ion battery (5), battery module (4), battery pack (1) and apparatus related thereto. The splicedly formed lithium strip is formed by splicing two or more base lithium strips to each other, wherein fluctuations in the thicknesses of the base lithium strips are 5% or less. The splicedly formed lithium strip has a splicing region and a non-splicing region that are alternatingly distributed along the splicing direction, and the maximum thickness H of the splicing region and the minimum thickness L of the non-splicing region satisfy (I).
Patent WO-2021027605-A1 (WO)
Title: 接收、发送下行控制信息的方法和装置
Inventor: LIU XIANDA
IPC: H04W24/02
Filed: 2020-08-03
Abstract: 本申请提供了一种接收DCI、发送DCI的方法和装置，应用在CoMP场景下，能够降低终端设备盲检DCI的复杂度。该方法包括：接收第一配置信息和第二配置信息，该第一配置信息和第二配置信息分别用于确定第一DCI格式的有效载荷大小和第二DCI格式的有效载荷大小，该第一配置信息和第二配置信息由不同的传输点发送的，通过在第一DCI格式中填零或截断，和/或，在第二DCI格式中填零或截断，以使得第一DCI格式的有效载荷大小和所述第二DCI格式的有效载荷大小相同，能够减少不同有效载荷大小的DCI格式的个数，从而降低终端设备盲检测DCI的复杂度。
Patent WO-2021036855-A1 (WO)
Inventor: ZHAO MINGXING
IPC: C02F101/10
Filed: 2020-08-18
Abstract: 本发明公开了一种利用蓝藻制备反硝化外加碳源的方法和应用，属于固体有机废物的处理与利用和水处理技术领域。本发明是采用鸟粪石沉淀+磷酸钙沉淀组合工艺回收蓝藻厌氧发酵液中的氮磷，经处理后的蓝藻厌氧发酵液能够替代传统的商业碳源作为脱氮过程中的外加碳源，不但能够为反硝化过程提供碳源，且相对于商用碳源能够明显提高污水的脱氮能力，既可以实现蓝藻的资源化利用，又可以解决城市污水处理厂碳源不足的问题，降低城市污水处理厂运行成本，变"废"为"宝"，一举两得。
Patent WO-2022021505-A1 (WO)
Inventor: ZHANG JINLU
IPC: H03F3/217
Filed: 2020-08-21
Abstract: A digital power amplifier for current feedback self-excited oscillation audio of a filter capacitor, which digital power amplifier relates to the field of digital power amplifiers. The digital power amplifier comprises: a voltage feedback outer-loop circuit, a current self-excited inner-loop circuit, an MOS driving circuit and an LC circuit, wherein an input end of the LC circuit is connected to an output end of the MOS driving circuit, an output end of the LC circuit is connected to the voltage feedback outer-loop circuit and provides output voltage feedback, and the capacitance current of the LC circuit serves as a feedback signal of the current self-excited inner-loop circuit; an input end of the voltage feedback outer-loop circuit is connected to an input voltage VIN, and an output end thereof outputs a control voltage VM to an input end of the current self-excited inner-loop circuit; and an output end of the current self-excited inner-loop circuit is connected to an input end of the MOS driving circuit. The digital power amplifier has the advantages of a high loop stability, an extremely small output impedance, an extremely high power supply rejection ratio and easy current sampling.
Patent WO-2022040978-A1 (WO)
Title: An optimized method for wi-fi band steering
Inventor: CHEN BO
IPC: H04W72/04
Filed: 2020-08-26
Abstract: An access point device associates with a client device on a first band and on a second band, the access point device can steer the client device from the first band to the second band or from the second band to the first band based on a signal parameter offset value. The access point device can determine a first signal parameter value associated with the client device on the first band and a second signal parameter value associated with association of the client device on the second band. A home network controller device is enabled to: count n number of times, within a predetermined time period, that the client device is steered from the first band to the second band and vice versa; and instruct the access point device to increase the signal parameter offset value when n is greater than a predetermined value, m.
Patent WO-2021043105-A1 (WO)
Title: Method and apparatus for node in wireless communications
Inventor: JIANG QI
IPC: H04L5/00
Filed: 2020-08-31
Abstract: Disclosed in the present application are a method and apparatus for a node in wireless communications. A first node first receives first signaling, then sends first target signaling and a first signal, and sends a first information block in a target time-frequency resource set; the first signaling is used for determining the first target signaling and the first signal; the first information block comprises a first domain and a second domain; the first domain is used for indicating whether the second domain is associated with the first signaling; when the second domain is associated with the first signaling, the second domain is used for indicating whether the first signal is received correctly; a receiver of the first information block and a receiver of the first signal are not co-located. According to the present application, by using a first domain to dynamically indicate whether a second domain is associated with first signaling, the flexibility of signals comprising feedback information over a sidelink in transmission over a cellular link is improved, and thus the spectral efficiency of transmission over the sidelink is improved.
Patent WO-2021057404-A1 (WO)
Inventor: LIANG WEITAO
IPC: C08K13/04
Filed: 2020-08-31
Abstract: A laser engraving liquid crystal polymer composition and a preparation method therefor, the composition comprising the following raw materials in parts by weight: 100 parts of a LCP, 20-30 parts of a filler, 0.1-0.2 parts of a laser engraving aid, 0.2-0.4 parts of an antioxidant and 1-3 parts of a lubricant. Adding a large amount of a filler to a LCP and performing blending modification may improve the mechanical properties and dielectric properties of a composition; meanwhile, adding a small amount of a lubricant enables the composition to have good molding processability. In addition, adding an appropriate amount of a laser engraving aid to the composition improves the laser engraving effect of the composition, enabling same to have excellent processability, and increasing the yield of manufactured antennas.
Patent WO-2021088510-A1 (WO)
Title: Video classification method and apparatus, computer, and readable storage medium
Inventor: WANG RUICHEN
IPC: G06F16/783
Filed: 2020-09-10
Abstract: A video classification method, comprising: acquiring a key frame image from a target video; inputting the key frame image into an image search engine to obtain descriptive information of the key frame image, and determining keyword groups of the key frame image according to the descriptive information; acquiring and determining, from a plurality of preset text type features, preset text type features corresponding to the plurality of keyword groups; and determining a video type label of the target video according to the text type features. By means of the method, on the basis of a key frame image among a plurality of frame images constituting a target video, text type features of the target video can be determined according to corresponding descriptive information in an image search engine, so as to obtain a video type label of the target video, thereby improving the video classification efficiency.
Patent WO-2021128953-A1 (WO)
Title: 编织支架及编织支架系统
Inventor: ZHU QING
IPC: A61F2/82
Filed: 2020-09-10
Abstract: 一种编织支架及编织支架系统，编织支架系统包括编织支架，编织支架（100）由编织线沿一轴线螺旋环绕并相互交织而成，编织线包括至少一根弹性金属管（110），弹性金属管（110）具有第一内腔，且弹性金属管的壁上开设有与第一内腔相贯通的释放孔（111）。第一内腔可用作灌注药物的药物容置空间，灌注于第一内腔的药物可从释放孔（111）处释放，从而使得编织支架（100）可作为载药支架的基体，解决现有载药支架的柔顺性及抗疲劳性差的问题。
Patent WO-2021063166-A1 (WO)
Inventor: MEI WENHAI
IPC: H01L51/50
Filed: 2020-09-11
Abstract: A ligand for a quantum dot, a coordinated quantum dot, a quantum dot layer and a patterning method therefor. The cleavage ligand comprises a first coordination unit A, a cleavage unit B, and an adhesion regulating unit C. The cleavage ligand is connected to the surface of a coordinated quantum dot. The patterning method for a quantum dot layer comprises: providing a substrate; coating a mixture containing the coordinated quantum dot on the substrate to form a quantum dot film; exposing the quantum dot film in a preset area with ultraviolet light, so that a photolysis reaction occurs on the cleavage unit B in the cleavage ligand, and a molecular chain segment containing the adhesion regulation unit C after the decomposition falls off from the surface of the quantum dot; and removing the quantum dot film which has not been subjected to exposure processing by washing with an organic solvent, and performing drying to form a patterned quantum dot layer. The formed quantum dot layer has a higher resolution.
Patent WO-2022052142-A1 (WO)
Inventor: LIANG GUANGYU
IPC: H02J3/00
Filed: 2020-09-16
Abstract: A method for path sorting in load transfer decision-making for an open-loop power grid. The method specifically comprises the following steps: step 1, determining a device that causes load transfer in an open-loop operating power grid; step 2, determining a power grid range within which a power cut occurs due to an exit or load shedding operation of a focus device, and denoting the power grid range as a target set [Q]; step 3, analyzing the target set [Q]; step 4, selecting a related power grid which is within a power grid range below a common root node device of a main standby side and the focus device; and step 5, exhausting transfer paths of the target set [Q] according to analysis results in steps 3 and 4, and sorting the transfer paths according to a priority principle. By constructing an intermediate power supply tree, the problems of an existing traditional power supply tree whereby same is too simple and cannot analyze paths, and of a method for analyzing and sorting paths by means of a wide-area topological power supply tree whereby same is too complex are solved.
Patent WO-2022056893-A1 (WO)
Inventor: CAO QINGHENG
IPC: G06Q10/10
Filed: 2020-09-20
Abstract: 一种时间安排系统及时间安排方法，时间安排系统包括：第一信息获取单元（11）、第二信息获取单元（12）和处理单元（13），时间安排方法包括：获取活动安排的基础信息（S1），包括参与人和可供选择的时间段；将可供选择的时间段传递参与人，由参与人从中选取自己可参加的时间段（S2）；根据可供选择的时间段和各参与人选取的自己可参加的时间段，分析得到适合的活动时间（S3）。通过收集相关人员的可参加活动的时间，自动分析出适合的活动时间，发送活动通知给相关人员，能够提高活动安排的效率，提高活动安排的自动化程度，降低工作人员的工作量，提高效率。
Patent WO-2022052155-A1 (WO)
Title: Grinding machine with abrasive belt
Inventor: YAN CHUNFENG
IPC: B24B21/20
Filed: 2020-09-22
Abstract: Disclosed is a grinding machine with an abrasive belt, wherein a mounting beam is horizontally and fixedly connected to a frame, the mounting beam is provided with a plurality of parallel threaded holes, a mounting plate and a limiting plate are respectively fixed in two threaded holes by means of two screws, a rectangular limiting groove is arranged on the limiting plate, and two rollers are rotationally connected to the mounting plate; a tensioning arm and a tensioning air cylinder are hinged to the frame, an air cylinder shaft of the tensioning air cylinder is hinged with the tensioning arm, and a tensioning wheel is rotationally connected to the tensioning arm; and a grinding electric motor is fixedly connected to the frame, a driving wheel is fixed to an electric motor shaft of the grinding electric motor, a grinding belt penetrates the limiting groove on the limiting plate, and the driving wheel, the tensioning wheel and the rollers are mutually linked by means of the grinding belt. The present utility model has a simple structure; the tensioning wheel of the grinding belt is adjustable; the operation angle of the grinding belt is adjustable; and the mechanism has a rational design, is very convenient to adjust, and has a good use effect.
Patent WO-2021218022-A1 (WO)
Title: 直线电机
Inventor: LIU YUANJIANG
IPC: H02K41/02
Filed: 2020-09-28
Abstract: 一种直线电机（100），包括安装壳体（1）、定子组件（2）和动子组件（3），安装壳体（1）至少一端设有一开口（1a），以开口（1a）的长度方向为纵向，以宽度方向为横向，动子组件（3）安装在安装壳体（1）的开口（1a）所在端，动子组件（3）包括位于安装壳体（1）内的安装端（3a），安装端（3a）在横向上的两侧部分别通过侧向滑动结构与安装壳体（1）滑动安装，侧向滑动结构包括在横向上呈相对设置且相互配合的滑动部（4）和配合部（5），滑动部（4）和配合部（5）其中之一设于安装端（3a）的侧部，另一设于安装壳体（1），且配合部（5）和/或滑动部（4）设置为沿纵向布设，该技术方案的直线电机（100）可以解决现有技术中的直线电机在壁挂安装时运行不稳定而减低电机的使用寿命的技术问题。
Patent WO-2021073462-A1 (WO)
Inventor: YANG JIAN
IPC: G06Q10/06
Filed: 2020-10-11
Abstract: 一种基于相似日负荷曲线的10kV静态负荷模型参数辨识方法，上述方法基于大量日负荷响应特性曲线，根据静态负荷模型结构及约束条件，依据两个关于负荷理论上的基本假设，提出静态负荷模型参数全时段优化辨识模型，通过优化求解，给出10kV负荷全时段的静态电压模型参数，获得各时间点负荷有功、无功功率随着电压变化而变化的规律，同时得到负荷构成成分的变化规律。上述方法具有较好的适用性，适用于大规模10kV负荷的静态模型分析，较好地满足了实际需求。
Patent WO-2021078205-A1 (WO)
Inventor: DU YUANYUAN
IPC: B64C27/08
Filed: 2020-10-22
Abstract: 一种陆空两用无人机，包括机身（1）、机臂组（2）、飞行组件（3）和行走组件（4），机臂组为两个，两个机臂组设在机身的相对两个侧壁上，每个机臂组包含多个机臂（21），每个机臂可转动地设在机身上，飞行组件设在机臂的远离机身的一端，飞行组件被配置为驱动机身飞行，行走组件设在机臂的远离机身的一端，行走组件被配置为驱动机身行进。陆空两用无人机具有飞行形态和行走形态，在飞行形态，多个机臂水平设置，在行走形态，多个机臂与水平面具有夹角，陆空两用无人机的结构较为简单，且能够较好地适应障碍较多的路面环境。
Patent WO-2021109812-A1 (WO)
Inventor: LI XU
IPC: H04B10/2575
Filed: 2020-11-11
Abstract: Embodiments of the present application provide a central unit, a remote unit, a microcell system, and a communication method. A digital-to-analog conversion (DAC) module and an analog-to-digital conversion (ADC) module are provided in a central unit to enable the central unit to transmit an analog optical signal to a remote unit. When the central unit transmits analog optical signals to multiple remote units, because the processing delay of analog devices in analog transmission is usually on the order of nanoseconds, and the total delay consisting of the processing delay and the path transmission delay fluctuates little or is even fixed, it is relatively easy to achieve synchronization of multiple remote units by means of calibration in the central unit, such that it is possible to implement distributed MIMO functions more easily.
Patent WO-2021093863-A1 (WO)
Inventor: SONG XUEYAN
IPC: H04L29/08
Filed: 2020-11-13
Abstract: 一种信息处理方法、装置及计算机可读存储介质。所述信息处理方法包括：接入网关接收承载在固定网络会话的第一消息(S100)，并根据第一消息和预存映射信息对固定网络会话和移动网络会话进行映射，从而可以将第一消息中的数据报文发送至用户面功能(S200)。
Patent WO-2021218116-A1 (WO)
Inventor: LI LONG
IPC: A47B3/08
Filed: 2020-11-15
Abstract: L'invention concerne un support de montage pour une table réglable en hauteur, comprenant un ensemble cadre de support (1) et deux groupes d'ensembles montants verticaux (2) disposés de manière rotative sur les côtés gauche et droit de l'ensemble cadre de support (1), respectivement, les deux groupes d'ensembles montants verticaux (2) étant tous deux munis d'un dispositif de verrouillage (3) pouvant verrouiller ou déverrouiller l'ensemble cadre de support (1). Lorsqu'une patte de support de montant vertical (16) doit être rangée, une patte de support de montant vertical télescopique (16) est d'abord rétractée, puis des parties de déverrouillage en saillie (13) sont pressées manuellement vers l'intérieur, des plaques de verrouillage (7) sont soumises à une force et compriment ensuite un ressort de verrouillage (9) vers l'intérieur, des parties de verrouillage en saillie (11) se déplacent vers l'intérieur et sont désengagées des fentes de verrouillage (10), le dispositif de verrouillage (3) est déverrouillé, puis une plaque de montage de montant vertical (15) est tournée vers le bas, et la plaque de montage de montant vertical (15) entraîne la patte de support de montant vertical (16) pour qu'elle soit rétractée juste au-dessous de l'ensemble cadre de support (1) ; lorsque la patte de support de montant vertical (16) doit être déployée, la plaque de montage de montant vertical (15) est tournée vers le haut, et la plaque de montage de montant vertical (15) entraîne la patte de support de montant vertical (16) pour qu'elle soit déployée ; et lorsque les parties de verrouillage en saillie (11) se déplacent vers les fentes de verrouillage (10), le dispositif de verrouillage (3) effectue le verrouillage, et la patte de support de montant vertical (16) supporte de manière sûre l'ensemble cadre de support (1). L'opération est facile et l'efficacité du montage est élevée.