baber/WOPTO huggingface dataset:
Patent WO-2019242111-A1 (WO)
Title: Goa电路及具有该goa电路的液晶显示装置
Inventor: LV XIAOWEN
IPC: G09G3/36
Filed: 2018-09-07
Abstract: 一种GOA电路(2)，包括多个级联的GOA单元，第N级GOA单元包括上拉控制模块(100)、上拉模块(200)、下传模块(300)、下拉维持模块(400)、下拉模块(500)以及自举电容(600)；上拉控制模块(100)分别与下传模块(300)以及下拉维持模块(400)连接；上拉模块(200)分别与CK时钟信号线(800)以及本级的扫描线(900)连接；下传模块(300)分别与CK时钟信号线(800)以及下拉模块(500)连接；下拉维持模块(400)以及下拉模块(500)分别与下拉信号线(1000)连接；下拉模块(500)分别与本级的扫描线(900)连接以及XCK时钟信号线(700)连接；自举电容(600)的一端分别与上拉控制模块(100)以及下传模块(300)连接，另一端与本级的扫描线(900)连接。
Patent WO-2019057060-A1 (WO)
Title: Liquid crystal display panel and liquid crystal display apparatus
Inventor: HUANG BEIZHOU
IPC: G02F1/1339
Filed: 2018-09-19
Abstract: Disclosed is a liquid crystal display panel (20), comprising: an active switch array substrate (10) comprising a base (11), wherein the base (11) comprises a display area (111) provided with an electrostatic protection line (15) and a peripheral area (113) surrounding the display area (111), and the electrostatic protection line (15) forms a plurality of protruding structures (151); a color filter substrate (25) arranged opposite the active switch array substrate (10); and a liquid crystal layer (23) and a frame adhesive layer respectively located between the active switch array substrate (10) and the color filter substrate (25), wherein the liquid crystal layer (23) covers the display area (111), the liquid crystal layer (23) is surrounded by the frame adhesive layer, the frame adhesive comprises an annular barrier wall (1131) and a straight-strip barrier wall (1133), the annular barrier wall (1131) is arranged close to the display area (111), and the straight-strip barrier wall (1133) is arranged away from the display area (111). Also provided is a liquid crystal display apparatus (30). According to the embodiments, the circuit complexity can be effectively reduced, and a good electrostatic protection effect can be achieved as soon as possible in a panel manufacturing process.
Patent WO-2020015178-A1 (WO)
Inventor: ZHANG XIANMING
IPC: G09G3/36
Filed: 2018-09-27
Abstract: L'invention concerne un affichage à cristaux liquides, comportant: un contrôleur de chronologie, comportant une broche de réinitialisation, une broche auxiliaire de réinitialisation, un circuit (3) de charge et un circuit (4) de commande de charge; un circuit (1) de broche de réinitialisation; et un circuit (2) de broche auxiliaire de réinitialisation, la broche auxiliaire de réinitialisation étant reliée extérieurement à une première extrémité d'une seconde résistance (R2) et une première extrémité d'un second condensateur (C2), et une seconde extrémité de la seconde résistance (R2) et une seconde extrémité du second condensateur (C2) étant mise à la terre. Le circuit (3) de charge comporte une source de courant et un interrupteur (K) de source de courant, la source de courant étant reliée à une extrémité d'entrée de l'interrupteur (K) de source de courant, une extrémité de sortie de l'interrupteur (K) de source de courant étant reliée à la première extrémité du second condensateur (C2), et une extrémité de commande de l'interrupteur (K) de source de courant étant reliée à un signal de commande de charge; le circuit (4) de commande de charge étant utilisé pour générer le signal de commande de charge, le second condensateur (C2) étant chargé lorsqu'une condition imposant que la tension de la broche auxiliaire de réinitialisation soit inférieure à une première tension de référence prédéfinie et que la tension de la broche de réinitialisation soit supérieure à une seconde tension de référence prédéfinie est satisfaite. La réinitialisation est déterminée au moyen de l'action combinée de la broche auxiliaire de réinitialisation et de la broche de réinitialisation, empêchant ainsi que des anomalies se produisent au cours de la mise sous tension et de la mise hors tension rapides.
Patent WO-2019062973-A1 (WO)
Title: Charging device of vehicle, and vehicle
Inventor: WU XINGGUO
IPC: H05K7/20
Filed: 2018-09-29
Abstract: Provided is a charging device (100), comprising: a heat dissipation main body (10), with a cooling flow channel (11) being formed in the heat dissipation main body (10), and a mounting base (20) being arranged on the heat dissipation main body (10); and a charging connector (30), the charging connector (30) being mounted on the mounting base (20). Further provided is a vehicle (1000) having the charging device (100). The charging device (100) can reduce the temperature of a wiring terminal of the charging connector (30), so as to prevent the wiring terminal from overheating, thus ensuring the operational reliability of the charging device (100) and the charging safety of the vehicle (1000).
Patent WO-2020077601-A1 (WO)
Title: Soldering device
Inventor: YANG WEN
IPC: B25J9/16
Filed: 2018-10-18
Abstract: A soldering device, comprising: a soldering station (10); a master grabbing robot (20) with one end connected to a master end effector (40), the master end effector (40) being used to grab an inductance coil, and the master grabbing robot (20) driving the master end effector (40) to convey the inductance coil to the soldering station (10); a slave soldering robot (30) with one end connected to a slave end effector (50), the slave end effector (50) being used to solder the inductance coil, and the slave soldering robot (30) driving the slave end effector (50) to move; and a controller (60) coupled to the master grabbing robot (20) and the slave soldering robot (30).
Patent WO-2019184335-A1 (WO)
Inventor: HONG TAO
IPC: G02B27/01
Filed: 2018-10-30
Abstract: Provided are a head-up display device, a control method thereof, and a transportation means. The head-up display device comprises a display component (11), a first optical component (12), a second optical component (13), and a combining component (14). The lights of different polarization directions or polarization states are transmitted or reflected by first optical component (12), realizing light separation of state information projection and augmented reality information projection, thereby realizing double-layer display. For example, the augmented reality information can be displayed at a distance farther from the driver's eyes, so that the focal length of the human eye does not need to be adjusted frequently during driving, which makes the viewing more comfortable, thereby eliminating safety hazards.
Patent WO-2019091327-A1 (WO)
Title: 一种有保健养生功能的保温隔热干粉墙体装饰材料
Inventor: GUAN QIHUAN
IPC: C04B28/04
Filed: 2018-11-01
Abstract: 一种有保健养生功能的保温隔热干粉墙体装饰材料，其特征在于：该保温隔热干粉墙体装饰材料以质量百分比计含有普通硅酸盐白水泥10％～50％，灰钙10％～50％，伊利石粉2％～50％，电气石粉0.5％～30％，滑石粉0.5％～30％，方解石粉1％～40％，可再分散乳胶粉0.5％～6％，纤维素醚0.1％～1％，疏水剂0.1％～0.5％，玻化微珠0.1％～5％。该材料具有良好的隔热、保温、永久释放负离子、释放人体有益的红外线、防辐射和吸收有害物质的效果，具有保健养生功能效果。
Patent WO-2020073385-A1 (WO)
Inventor: WANG HUIPING
IPC: G02F1/1339
Filed: 2018-11-01
Abstract: Disclosed in the present application are a display panel and a display device. The display panel comprises: a display area; a seal, configured in a non-display area of the display panel; an Au ball transfer pad, configured in the non-display area; a retaining wall, configured between the Au balls and a display area and block the Au balls from entering the display area.
Patent WO-2019100968-A1 (WO)
Inventor: LIU XIANGQIANG
IPC: G05F1/56
Filed: 2018-11-13
Abstract: 一种电源系统的控制方法及其设备，用于从反馈逻辑单元（2024）中获取第二电压信号并利用该电压信号维持第二用电单元（202）处于上电状态。该控制方法包括：第二用电单元接收第一用电单元发送的第一控制信号（401）；第二用电单元根据第一控制信号执行上电操作（402）；第二用电单元根据上电操作输出第一电压信号至反馈逻辑模块（403）；第二用电单元从反馈逻辑模块中获取第二电压信号（404）；当第一用电单元处于下电状态时，第二用电单元利用第二电压信号维持第二用电单元处于上电状态（405）。
Patent WO-2020107416-A1 (WO)
Inventor: XU WEIJIE
IPC: H04W48/16
Filed: 2018-11-30
Abstract: 本申请公开了随机接入过程选择方法、装置、芯片及计算机程序，其中方法可包括：当系统同时配置了第一随机接入过程以及第二随机接入过程时，终端设备基于预定条件，选择通过第一随机接入过程或第二随机接入过程发起随机接入。应用本申请所述方案，可提升随机接入过程的效率等。
Patent WO-2019184420-A1 (WO)
Inventor: XIONG ZAIXIANG
IPC: H02M1/32
Filed: 2018-12-03
Abstract: 一种防尘系统及投影设备，该系统包括：主控芯片、传感器和卸除系统，所述传感器设置在防尘网表面，用于获取防尘网表面的灰尘浓度，当所述灰尘浓度达到预设的阈值时，所述主控芯片控制报警系统或卸除系统执行报警或更换防尘网操作，通过传感器检测防尘网表面的灰尘浓度，当灰尘浓度达到一定值时，及时更换或清除灰尘，使设备保持良好的通风和散热性能，提高了设备的可靠性。
Patent WO-2019153864-A1 (WO)
Inventor: ZHANG ZHEN
IPC: G09G3/20
Filed: 2018-12-07
Abstract: A shift register unit, comprising an input circuit (101), a reset circuit (103), an output circuit (102), a first pull-down control circuit (104), a second pull-down control circuit (105), a first pull-down circuit (106) and a second pull-down circuit (107). The first pull-down control circuit (104) is connected to a first control signal terminal (GCL), a pull-down signal terminal (VGL) and a pull-up node (PU), and outputs a third control signal to the first pull-down circuit (106); the second pull-down control circuit (105) is connected to a second control signal terminal (GCH), the pull-down signal terminal (VGL) and the pull-up node (PU), and outputs a fourth control signal to the second pull-down circuit (107); the first pull-down circuit (106) is turned on in response to the third control signal, and controls the potentials of the pull-up node (PU) and an output terminal (G(N)) according to a second control signal; and the second pull-down circuit (107) is turned on in response to the fourth control signal, and controls the potentials of the pull-up node (PU) and the output terminal (G(N)) according to a first control signal, wherein the first pull-down circuit (106) and the second pull-down circuit (107) are alternately turned on.
Patent WO-2020000923-A1 (WO)
Title: 语音唤醒装置、方法及语音控制空调系统
Inventor: WANG ZI
IPC: F24F11/00
Filed: 2018-12-14
Abstract: 一种语音唤醒装置、方法及语音控制空调系统，装置包括：红外检测装置（1），控制装置（2），语音模块（3），信息匹配模块（4）；其中红外检测装置（1）用于检测用户与电子设备的距离；控制装置（2）用于判断用户与电子设备的距离是否在设定的范围内，根据判断结果启动或休眠语音模块（3），并根据信息匹配模块结果确定与指令信息具有对应关系的控制指令，根据所述控制指令控制电子设备；语音模块用于采集语音信息，并启动或休眠是进行语音提示；信息匹配模块（4）用于将采集的语音信息与语音指令列表中的指令信息进行匹配。该语音唤醒装置和方法免去了用户需要现对语音产品进行唤醒的过程，用户可直接说出控制指令，方便用户使用，同时解决了语音产品误识别和二次交互的问题。
Patent WO-2019179184-A1 (WO)
Inventor: FU HUILI
IPC: H01L21/768
Filed: 2018-12-17
Abstract: The present application relates to the technical field of electronic packages, discloses a package structure and a manufacturing method therefor, and an electronic device, and solves the problem that in a POP structure, a lower package structure is thick. The package structure comprises: a first redistribution layer having a first surface and a second surface which are provided opposite to each other, the second surface of the first redistribution layer being fixedly connected to a printed circuit board; a substrate, one side of the substrate being provided with a depressed part, the substrate being fixed onto the first surface of the first redistribution layer, and the depressed part and the first redistribution layer constituting a receiving space for receiving a target chip; and the target chip received in the receiving space and electrically connected to the first surface of the first redistribution layer.
Patent WO-2019134513-A1 (WO)
Inventor: CHEN YAN
IPC: H04N5/232
Filed: 2018-12-19
Abstract: 本申请实施例公开了一种拍照对焦方法、装置、存储介质及电子设备，其中，拍照对焦方法应用于电子设备，电子设备包括第一摄像头和第二摄像头，拍照对焦方法包括：通过所述第一摄像头对预设场景取景，得到第一取景画面，通过所述第二摄像头对所述预设场景取景，得到第二取景画面；根据所述第一取景画面和所述第二取景画面确定所述预设场景中的远景和近景；检测目标对象在所述近景中的位置；根据所述目标对象在所述近景中的位置调整所述第一摄像头和所述第二摄像头的对焦位置。
Patent WO-2019137284-A1 (WO)
Inventor: WU SIJIN
IPC: G06Q40/02
Filed: 2019-01-03
Abstract: 本发明公开了一种基于区块链的虚拟币抵押借款方式，约定系统在区块链上发行小型虚拟币，及与法币价值相等的虚拟币，采购方将小型虚拟币抵押获得与法币价值相等的虚拟币，再使用与法币价值相等的虚拟币投资其他虚拟币，当采购方将于法币价值相等的虚拟币还给系统后，系统将小型虚拟币还给采购方，从而实现一种基于区块链的虚拟币抵押借款方式。
Patent WO-2019154246-A1 (WO)
Title: Method and device for communications in millimeter-wave networks
Inventor: NARASIMHA MURALI
IPC: H04B7/04
Filed: 2019-01-31
Abstract: Methods and apparatus are provided to realize mm-wave communication. In an embodiment, a network device inputs a user equipment (UE) location into a beam prediction engine to generate a set of mm-wave beams, and the beam prediction engine generating the set of mm-wave beams based on at least one static object within a coverage area of an access device. The network device inputs at least one mobile object location of at least one mobile object into the beam prediction engine to select a subset of mm-wave beams from the set of mm-wave beams, and the beam prediction engine selecting the subset of mm-wave beams based on the at least one static object and the at least one mobile object. The network device selects a mm-wave beam from the subset of mm-wave beams.
Patent WO-2019149253-A1 (WO)
Title: Material feeding, distributing, and pushing mechanism of tying tool, automated tying tool, and automated tying method
Inventor: XU XIUYI
IPC: B65B13/04
Filed: 2019-01-31
Abstract: An automated tying tool comprises a slider (1), a guide rail (2), a first guide claw (3), a second guide claw (4), a frame (5), a tensioning wheel (6), a cutter (7), a stepwise material feeding mechanism (8), and a material pushing rod (9). The first guide claw (3) and the second guide claw (4) are mounted on the frame (5) via rotation of a central pin. The cutter (7) and the tensioning wheel (6) are mounted in the frame (5). The guide rail (2) is adjacent to the frame (5). The slider (1) engages with the guide rail (2). An automated tying method comprises: the stepwise material feeding mechanism (8) being loaded with ties (20), and conveying the ties at a fixed pitch in each binding cycle; the slider (1) driving the tie (20) to slide from a predetermined position to a binding position; a tie body of the tie (20) being curled in guide slots in the first guide claw (3) and the second guide claw (4); causing a tail portion of the tie to pass through a hole at a head portion of the tie; the tensioning wheel (6) rotating to tighten the tie; and the cutter (7) cutting the tightened tie. Also disclosed is a material feeding, distributing, and pushing mechanism of a tying tool. The automated tying tool is also applicable to automated binding employing bulk nylon ties and combined ties.
Patent WO-2020191611-A1 (WO)
Title: Circuit et procédé de synchronisation de domaine d'horloge croisée
Inventor: BAI YUJING
IPC: H03K19/00
Filed: 2019-03-26
Abstract: La présente invention concerne un circuit de synchronisation de domaine d'horloge croisée . Le circuit de synchronisation de domaine d'horloge croisée de la présente invention comprend un circuit de canal de domaine d'horloge, un circuit de génération d'adresse d'écriture, un circuit de génération d'adresse de lecture et un circuit de mise en cache de données; le circuit de génération d'adresse d'écriture est utilisé pour obtenir une adresse d'écriture selon un signal d'activation d'écriture, l'adresse d'écriture étant utilisée pour commander le circuit de mise en mémoire cache de données pour recevoir des données d'entrée, et les données d'entrée étant dans un domaine d'horloge d'écriture; le circuit de canal de domaine d'horloge est utilisé pour échantillonner le signal d'activation d'écriture pour obtenir une pluralité de résultats d'échantillonnage, et sélectionner un résultat d'échantillonnage à partir de la pluralité de résultats d'échantillonnage en fonction d'une différence de phase d'horloge en tant que signal d'activation de lecture, la différence de phase d'horloge étant une différence de phase entre un signal d'horloge d'écriture dans le domaine d'horloge d'écriture et un signal d'horloge de lecture dans un domaine d'horloge de lecture; le circuit de génération d'adresse de lecture étant utilisé pour obtenir une adresse de lecture selon le signal d'activation de lecture, l'adresse de lecture étant utilisée pour commander le circuit de mise en mémoire cache de données pour générer des données de sortie, et les données de sortie étant dans le domaine d'horloge de lecture; et le circuit de mise en cache de données est utilisé pour mettre en cache les données d'entrée et générer les données de sortie en fonction de l'adresse d'écriture et de l'adresse de lecture.
Patent WO-2020015403-A1 (WO)
Title: Method and device for image processing, computer readable storage medium and electronic device
Inventor: AU KAMWING
IPC: H04N5/232
Filed: 2019-04-12
Abstract: A method and device for image processing, a computer readable storage medium and an electronic device. The method comprises: an application program sending an image acquisition instruction to a camera drive, the image acquisition instruction comprising a category identifier, and the category identifier being used to indicate the category of a target image which the application program needs to acquire (1202); the camera drive controlling a camera to open according to the image acquisition instruction (1204); the camera drive generating a control instruction according to the category identifier and issuing the control instruction to a processing unit (1206); the processing unit opening a corresponding light transmitter according to the category identifier comprised in the control instruction (1208); and by means of the camera, acquiring a target image formed when the light transmitter irradiates an object (1210).
Patent WO-2020232579-A1 (WO)
Inventor: LIU HAOYUAN
IPC: B63C11/52
Filed: 2019-05-17
Abstract: Disclosed in the present invention are an underwater monitoring apparatus capable of automatically adapting to the direction of sunlight, and a method. The apparatus comprises a main body; a monitoring module, used for monitoring information of aquatic organisms in front; a solar energy power generating module, used for converting optical energy into electrical energy in order to power the apparatus; a calculation module, used for calculating in real time the predicted movement trajectory of the apparatus on the basis of the information of the aquatic organisms, in order to monitor the aquatic organisms; a steering module, used for driving the steering of the main body on the basis of the predicted movement trajectory of the apparatus; and a propulsion module, used for propelling the main body to move on the basis of the predicted movement trajectory of the apparatus. The underwater monitoring apparatus capable of automatically adapting to the direction of sunlight and the method of the present invention can implement long-term continuous monitoring of aquatic organisms.
Patent WO-2019223688-A1 (WO)
Title: Application of compound fg-4592 in preparation of pharmaceutical preparation for treating thyroid hormone receptor-mediated diseases
Inventor: LI YONG
IPC: A61P5/00
Filed: 2019-05-21
Abstract: Compound FG-4592, where application in preparation of a thyroid hormone receptor (THR) agonist and a pharmaceutical preparation for preventing or treating THR-mediated diseases is provided. The present invention relates to adjustment to the activity of a THR, in particular to selective activation of THRβ and lesion bodies thereof, and application in methods for preventing or treating THR-mediated diseases such as hypothyroidism, resistance to thyroid hormone, and depression.
Patent WO-2020237480-A1 (WO)
Inventor: TANG LI SAN
IPC: G06K9/62
Filed: 2019-05-27
Abstract: 本发明公开了基于图像识别的控制方法与装置。该方法包括：对图像进行特征提取，以获得与图像相关联的至少一个特征图像；基于至少一个特征图像来对图像进行划分，以获得至少一个图像子块以及至少一个图像子块的位置信息；以及对至少一个图像子块进行索引提取，以获得与至少一个图像子块相关联的至少一个索引信息，并且基于至少一个索引信息获得与至少一个图像子块相关联的描述信息，进而获得图像的识别结果。通过采用本发明的技术方案，可以提升图像识别的效率，还可以使得具备图像识别的物料接收和检验的系统可以更好地与其他生产系统集成。
Patent WO-2020155486-A1 (WO)
Title: Facial recognition optimization method and apparatus, computer device and storage medium
Inventor: CHEN LIN
IPC: G06K9/62
Filed: 2019-05-29
Abstract: The present application relates to a facial recognition optimization method and apparatus, a computer device and a storage medium. The method comprises: comparing a real-time facial photograph with a corresponding base photograph to obtain a first similarity; identifying whether there is a photograph corresponding to the real-time facial photograph; if so, comparing the real-time facial photograph with the corresponding photograph to obtain a second similarity; if the second similarity is greater than a pre-set similarity threshold, comparing the second similarity with the first similarity; and if the second similarity is greater than the first similarity, replacing the base photograph with the corresponding photograph.
Patent WO-2020078017-A1 (WO)
Inventor: CHANG MINQIANG
IPC: G06F3/01
Filed: 2019-06-14
Abstract: 根据本公开的示例实施例，提供了一种用于识别空中手写的方法、装置、设备以及计算机可读存储介质。方法包括检测二维灰度图像中的用户的手掌区域并且基于手掌区域来检测二维灰度图像中的指尖。方法还包括基于一组二维灰度图像来确定指尖的空间轨迹并且基于空间轨迹来识别用户的手写内容。本公开的实施例使用二维的灰度图像来识别并跟踪指尖的空间轨迹，能够加快空中手写识别的速度，并且对设备的处理性能要求较低，同时还能保证较高的准确率。
Patent WO-2020143163-A1 (WO)
Inventor: Ding Chengdan
IPC: G06F17/27
Filed: 2019-06-14
Abstract: L'invention concerne un procédé et un appareil de reconnaissance d'entité nommée, basés sur un mécanisme d'attention, ainsi qu'un dispositif informatique associé. Le procédé de reconnaissance d'entité nommée basé sur un mécanisme d'attention consiste : à réaliser une segmentation de mots sur un texte à reconnaître et à mapper des mots segmentés dudit texte sur des vecteurs afin d'obtenir des vecteurs de mots dudit texte ; et à attribuer des pondérations d'attention aux vecteurs de mots dudit texte et à entrer les vecteurs de mots avec les pondérations d'attention données dans un modèle de reconnaissance d'entité nommée pour une opération par couches, de sorte à obtenir un résultat de reconnaissance d'entité nommée dudit texte, ledit modèle comprenant au moins deux couches cachées, et lorsque l'opération par couches est réalisée au moyen du modèle de reconnaissance d'entité nommée, une sortie de noeud caché dans une couche cachée précédente est entrée dans une couche cachée suivante. Dans la présente invention, une entité nommée peut être reconnue au moyen d'un mécanisme d'attention, et la précision de reconnaissance de l'entité nommée est améliorée.
Patent WO-2020252617-A1 (WO)
Inventor: TANG HONGGANG
IPC: H04L9/08
Filed: 2019-06-17
Abstract: Disclosed in embodiments of the present description are a data processing method, apparatus and system. The system comprises a key generation server, a terminal device, and a data providing server. The terminal device is provided with a TEE and a security module. The data providing server encrypts data on the basis of a public key, the public key being pre-generated by the key generation server. The TEE receives the data encrypted on the basis of the public key, and initiates secure multi-party computation. The TEE and the security module jointly perform secure multi-party computation using a first private key component stored in the TEE and a second private key component stored in the security module to obtain a private key, wherein the first private key component and the second private key component are obtained by the TEE by splitting the private key sent by the key generation server after receiving same. The TEE performs decryption processing on the encrypted data using the private key obtained by the secure multi-party computation. The embodiments of the present description can enhance the security of data processing by TEE hardware.
Patent WO-2020133963-A1 (WO)
Title: 基于区块链的数据存储方法、相关设备及存储介质
Inventor: TANG YINHUI
IPC: H04L29/08
Filed: 2019-06-20
Abstract: 本发明实施例公开了一种基于区块链的数据存储方法、相关设备及存储介质，其中方法包括：目标节点获取所述区块链系统中广播的新生成的第一区块的序号，其中，所述目标节点为所述多个节点中的任一个，所述第一区块包括区块数据和区块头，所述区块头包括所述第一区块的序号；所述目标节点获取第一令牌种子，其中，所述第一令牌种子是根据所述区块链系统的节点数量生成的；所述目标节点基于所述目标节点的第一令牌值、所述第一区块的序号和所述第一令牌种子，确定存储所述第一区块或者存储所述第一区块的区块头，可有效缓解区块链系统中目标节点的数据存储压力。