baber/WOPTO huggingface dataset:
Patent WO-2021212777-A1 (WO)
Inventor: WU HUOQIANG
IPC: G05D21/02
Filed: 2020-10-19
Abstract: An automatic dosing control system and method for a wastewater softening pretreatment system, comprising a feedforward water quantity compensation module (116), a first dosing pump flow control module (111), a second dosing pump flow control module (113), a hydroxyl alkalinity feedback control module (114), a pH control module (112), a carbonate alkalinity feedback control module (115), a water inlet flowmeter (81) provided at an inlet of a magnesium removal reaction unit (1), a pH monitor (82) provided on a pipeline between the magnesium removal reaction unit (1) and a calcium removal reaction unit (2), an online alkalinity monitor (83) provided at an outlet of a clarification unit (3), a first frequency converter (9) used for controlling an alkali liquid dosing pump (5) and a second frequency converter (10) used for controlling a sodium carbonate dosing pump (6). According to the system and the method, the dosages of sodium hydroxide/lime alkali liquid and sodium carbonate may be fed back and adjusted in time according to real-time changes in carbonate alkalinity and hydroxide alkalinity of effluent and the fluctuation condition of water inlet flow, so that the calcium ion hardness and the magnesium ion hardness of softened effluent are stably controlled.
Patent WO-2022087766-A1 (WO)
Title: Channel state information acquisition for holographic multiple-input multiple-output
Inventor: XI WEI
IPC: H04W72/04
Filed: 2020-10-26
Abstract: Certain aspects of the present disclosure provide techniques for acquiring channel state information (CSI) for use in determining beams to be used when transmitting with holographic multiple-input multiple-output (MIMO) techniques. A method that may be performed by a user equipment (UE) includes receiving a reference signal (RS) comprising an RS sequence transmitted using different antenna ports of a base station (BS) and different cyclic shifts (CSs); and transmitting, to the BS, a channel estimate based on the RS.
Patent WO-2021109754-A1 (WO)
Title: Procédé de préparation de 1,2,3-trimercaptopropane
Inventor: ZHANG CHAO
IPC: C07C319/28
Filed: 2020-10-28
Abstract: L'invention concerne un procédé de préparation de 1,2,3-trimercaptopropane, avec du trichloropropane et de l'hydrosulfure de sodium servant de matières premières, le 1,2,3-trimercaptopropane étant produit sous l'effet d'un catalyseur. Le produit obtenu par utilisation de la solution technique de la présente invention présente une teneur élevée en sulfhydryle et un indice de réfraction élevé et est applicable dans la fabrication d'une lentille à indice de réfraction élevé ; de plus, le procédé de préparation fait appel à un processus simple, à des matières premières facilement disponibles et présente une valeur ajoutée de produit élevée.
Patent WO-2021135709-A1 (WO)
Title: Lightning protection apparatus applied to power device
Inventor: SHEN FANGHONG
IPC: H02G13/00
Filed: 2020-11-20
Abstract: Disclosed by the present application is a lightning protection apparatus applied to a power device. The lightning protection apparatus comprises a lightning arrester, a ball head, a base, a limiting member and a connecting member; the ball head is connected to the bottom part of the lightning arrester; a groove that has a circular cross section is provided on the base; the limiting member is provided between the ball head and the base, and is used to fix the ball head in the groove of the base; the connecting member comprises a connecting plate, a first baffle, a second baffle, a limiting plate and a locking member; the connecting plate is connected to the base; the first baffle and the second baffle are arranged opposite to each other, one end of each of the two is connected to the connecting plate, while the other end is in a free state; the limiting plate is provided between the first baffle and the second baffle; and one end of the locking member penetrates the first baffle, and the other end is connected to the limiting plate, and drives the limiting plate to move relative to the second baffle to change the gap between same and the second baffle. The present application has a simple structure, is easy to install, and may be applied to a variety of power devices, which greatly improves the scope of application of the lightning protection apparatus.
Patent WO-2021098885-A1 (WO)
Title: α-氟代查耳酮类衍生物及其应用
Inventor: LOU JINFANG
IPC: C07C59/84
Filed: 2020-11-23
Abstract: 提供一种α-氟代查耳酮类衍生物及其应用，所述衍生物包括其药学上可接受的盐。还提供了一种所述衍生物及其药学上可接受的盐在制备治疗PPAR受体相关病症的药物中应用。提供的衍生物体内吸收好，具有生物利用度高、药效作用强的特点，因此有巨大的临床应用价值。
Patent WO-2022116168-A1 (WO)
Title: Raw material stirring apparatus for manufacturing plastic shell of electronic product
Inventor: WANG SHAOJUN
IPC: B29B7/80
Filed: 2020-12-04
Abstract: A raw material stirring apparatus for manufacturing a plastic shell of an electronic product, comprising an apparatus body (1). The upper end of the apparatus body (1) is provided with a stirring motor (2); the lower end of the stirring motor (2) is provided with a fixing block (3); the lower end of the fixing block (3) is provided with a stirring shaft (4); the outer surface of the stirring shaft (4) is provided with a stirring rod (5); one end of the stirring rod (5) is provided with a fixing rod (6); the outer surface of the fixing rod (6) is provided with a rubber brush (7); the outer surface of the upper end of the apparatus body (1) is provided with a feeding port (8); the upper end of the feeding port (8) is provided with a seal cover (9); the outer surface of the lower end of the seal cover (9) is provided with a connection plug (10); the outer surface of the connection plug (10) is provided with a rubber layer (11); and a filter screen (12) is provided in the feeding port (8). The raw material stirring apparatus for manufacturing a plastic shell of an electronic product facilitates the cleaning of the inner wall of the apparatus, improves the use effect and can filter a raw material; and the feeding port (8) is blocked to improve the quality of raw material mixing and stirring.
Patent WO-2021129429-A1 (WO)
Title: 一种三联合循环系统、交通工具、充电系统
Inventor: JIN PU
IPC: F01K23/02
Filed: 2020-12-11
Abstract: 一种三联合循环系统、交通工具、充电系统，其中循环系统包括：空压机系统，包括回热器（101）、电动机（103）以及与电动机（103）连接的空压机（102），所述空压机（102）进气端接入外界气体，出气端连接回热器（101）进口；燃料电池系统，包括燃料电池（201），所述回热器（101）出口连接燃料电池进口用于为燃料电池（201）提供燃烧气体，所述燃料电池（201）尾气出口连接空压机（102）进气端用于推动空压机（102）旋转；以及，蒸汽发电系统，所述回热器（101）出口连接蒸汽发电系统用于为蒸汽发电系统提供热源。所述系统可同时解决SOFC发电余热和回热器（101）排气余热的回收问题，将系统中各环节产出的热量循环利用，可提高整个系统的发电和回收效率。
Patent WO-2021248863-A1 (WO)
Inventor: REN REN
IPC: G06F3/06
Filed: 2020-12-14
Abstract: L'invention concerne un procédé de traitement de données et un dispositif de stockage, se rapportant au domaine technique du stockage. Le dispositif de stockage adopte différentes granularités pour un traitement de déduplication de données et un traitement de compression. Une petite granularité est adoptée pour un traitement de déduplication pour des données, et une grande granularité est adoptée pour un traitement de compression pour les données. Par conséquent, la limite, selon laquelle les granularités pour la déduplication et la compression de données doivent être identiques, est surmontée, et une diminution du taux de déduplication de données provoquée par le fait que la granularité est trop grande et une diminution du taux de compression provoquée par le fait que la granularité est trop petite sont évitées dans certaines mesures, et le taux de réduction global de la déduplication et de la compression de données est amélioré.
Patent WO-2022126458-A1 (WO)
Inventor: LIU ZHONG
IPC: B60R16/02
Filed: 2020-12-16
Abstract: 一种供电装置、电池管理系统、供电系统、控制方法及介质。该方法包括：在车辆处于停车状态的情况下，控制供电装置的第一电池组为车辆的第一负载供电，并控制第一电池组和供电装置的第二电池组停止为车辆的第二负载供电(S410)；在为第一负载供电的过程中，获取第一电池组的容量参数(S420)；在第一电池组的容量参数低于第一预设容量阈值的情况下，控制直流变换器将第二电池组的电能传输至第一电池组(S430)。该方法能够使供电策略更具灵活性。
Patent WO-2021129533-A1 (WO)
Title: 骚扰电话号码的识别方法和装置、电子设备、计算机可读存储介质
Inventor: ZHANG SHANGJIN
IPC: H04W12/00
Filed: 2020-12-18
Abstract: 本申请涉及一种骚扰电话号码的识别方法和装置、电子设备、计算机可读存储介质，包括: 当检测到呼入请求时，检测终端当前所处的网络类型。当检测到终端当前所处的网络类型为无线网络时，则通过无线网络查询网络数据以识别发起呼入请求的电话号码是否属于骚扰电话号码。当检测到终端当前所处的网络类型为移动网络时，则检测接收呼入请求的SIM卡是否为支持长期演进语音VoLTE业务的SIM卡，若检测出接收呼入请求的SIM卡为支持VoLTE业务的SIM卡，则采用支持VoLTE业务的SIM卡通过移动网络查询网络数据以识别发起呼入请求的电话号码是否属于骚扰电话号码，得到识别结果。
Patent WO-2022099872-A1 (WO)
Inventor: LU QIWEI
IPC: G06F3/0354
Filed: 2020-12-23
Abstract: 本公开实施例中提供了一种智能笔字符识别方法、装置及电子设备，属于数据处理技术领域，该方法包括：获取需要进行字符识别的图形化文件，所述图形化文件由智能笔的笔迹生成；在云端服务平台中查找生成所述图形化文件的笔迹矩阵及存储值；在预设的字符识别数据库中，判断是否存在与所述笔迹矩阵及存储值对应的历史字符；若是，则直接使用所述历史字符作为图形化文件中待识别图形的字符。通过本公开的处理方案，能够提高智能笔字符的识别效率。
Patent WO-2021139606-A1 (WO)
Title: Data presention and payment methods, apparatuses, and devices, and medium
Inventor: PAN YONG
IPC: G06Q20/32
Filed: 2020-12-31
Abstract: Data presentation and payment methods, apparatuses and devices, and a medium. The data presentation method comprises: searching for a data processing signal once a predetermined condition is triggered (S101); once the data processing signal is received, determining target data contained in the data processing signal (S103); and according to the target data, determining the dimensions of data to be presented, and presenting data that conforms to said dimensions (S105).
Patent WO-2022151225-A1 (WO)
Inventor: FU JUNJIANG
IPC: H04R9/02
Filed: 2021-01-14
Abstract: 本申请实施例公开了一种骨传导扬声器，包括：振动组件，振动组件包括振动元件和振动壳体，振动元件用于将电信号转换为机械振动，振动壳体用于与用户脸部接触并将机械振动以骨传导的方式传递给用户来产生声音；以及谐振组件，谐振组件包括第一弹性元件和质量元件，质量元件通过第一弹性元件与振动组件连接，其中，振动组件导致谐振组件振动，谐振组件的振动可以减弱振动壳体的振动幅度。
Patent WO-2021169714-A1 (WO)
Title: 激光雷达以及应用于激光雷达的抗干扰方法
Inventor: TAO JUN
IPC: G01S17/00
Filed: 2021-01-27
Abstract: 一种激光雷达以及应用于激光雷达的抗干扰方法。该激光雷达包括：发射单元（1），配置为发射第一激光脉冲序列，其中，该第一激光脉冲序列基于预设的脉冲宽度信息生成；接收单元（2），配置为接收第二激光脉冲序列；处理单元（3），配置为基于该脉冲宽度信息，从该第二激光脉冲序列中，确定该第一激光脉冲序列的回波，其中，该第一激光脉冲序列的回波是障碍物（4）反射该第一激光脉冲序列而形成的。由此，可以提供具有更高抗干扰能力的激光雷达。
Patent WO-2021169799-A1 (WO)
Inventor: LI YONGQIAN
IPC: G09G3/3225
Filed: 2021-02-09
Abstract: Provided are a pixel circuit and a driving method therefor, and a display device. The pixel circuit comprises a light emitting device, a driving sub circuit, an energy storage sub circuit, a data writing sub circuit, and a pull-down sub circuit; the data writing sub-circuit is used for controlling, in response to a data writing control signal provided by a data writing control line, a voltage signal on a data line to be written into the control end of the driving sub circuit; the driving sub circuit is used for controlling the first end of the driving sub circuit to be communicated with the second end of the driving sub circuit under the control of the voltage of the control end of the driving sub circuit; the energy storage sub circuit is used for controlling the voltage of a target node; the light emitting device is electrically connected to the target node; the pull-down sub circuit is used for controlling, in response to a pull-down control signal provided by a pull-down control line, the voltage of the target node, so as to make the light emitting device not emit light.
Patent WO-2022068145-A1 (WO)
Inventor: LENG LUHAO
IPC: A47C4/04
Filed: 2021-02-26
Abstract: A plastic-steel folding chair, comprising a seat plate assembly (20), a backrest plate (10), and a metal support (30). The seat plate assembly (20) comprises a seat plate (22), the seat plate (22) comprising a panel (221) and a circumferential edge (222) that is connected to a surrounding edge of the panel (221) and is disposed downward; and the seat plate assembly (20) further comprises a metal frame (24), the bottom end of the metal frame (24) being bent outward to form a hook (241), and the hook clampingly fixing, by means of riveting, a lower edge of the circumferential edge (222). At least an upper edge of the backrest plate (1) is folded backward to form a fastener edge (12), the metal support (30) is provided with a slot or a seam corresponding to the fastener edge (12), the fastener edge is inserted into the slot or the seam (34), and the position of the slot or the seam (34) of the metal support (30) is riveted and then clampingly fixed in the fastener edge (12).
Patent WO-2022178852-A1 (WO)
Inventor: ZHANG LIBIN
IPC: H04R1/10
Filed: 2021-02-26
Abstract: La présente invention concerne un procédé et un appareil d'aide à l'écoute qui peuvent aider un utilisateur à sélectionner un son écouté. Le procédé comprend : la détermination de coordonnées d'une première source sonore selon un signal audio externe collecté par un microphone et selon une première direction, la première direction étant une direction déterminée par la réalisation d'une détection sur un utilisateur, et la première source sonore étant une source sonore dans une direction autre que la première direction ; selon les coordonnées de la première source sonore et selon une fonction de transfert relative à la tête (HRTF) prédéfinie, la détermination d'une première fonction HRTF correspondant à la première source sonore ; et selon la première fonction HRTF et selon un bruit virtuel prédéfini, l'obtention d'un signal de bruit correspondant à la première source sonore, et ensuite la lecture du signal de bruit.
Patent WO-2021190290-A1 (WO)
Title: 锁存器电路
Inventor: WANG KEJUN
IPC: G11C7/10
Filed: 2021-03-09
Abstract: 本申请涉及一种锁存电路，所述锁存电路包括锁存模块、置位控制模块、复位控制模块和时钟模块。其中，所述锁存模块用于锁存数据模块输入的数据；所述置位控制模块用于控制所述锁存模块输出高电平信号；所述复位控制模块用于控制所述锁存模块输出低电平信号；所述时钟模块用于为所述锁存模块提供读取时钟信号。
Patent WO-2021232909-A1 (WO)
Inventor: CHENG FEI
IPC: G05B19/02
Filed: 2021-03-16
Abstract: Disclosed in the present application are a remote function customization method and apparatus, a device, and a storage medium. The method comprises: determining, according to a service requirement, a function to be customized, and dividing the function to be customized into at least one minimum function unit; determining a remote function operation instruction for the minimum function unit; and sending the remote function operation instruction to a device terminal so that the device terminal implements the function to be customized.
Patent WO-2021218544-A1 (WO)
Title: 一种提供无线上网的系统、方法及电子设备
Inventor: WANG TONGBO
IPC: H04W4/70
Filed: 2021-03-31
Abstract: 本申请涉及通信技术领域，提供了一种提供无线上网的系统、方法及电子设备，所述系统包括：第一电子设备和第二电子设备,所述第一电子设备用于：接收用户的第一操作，所述第一操作用于将所述第一电子设备中的第一数据分享或者投屏到所述第二电子设备；响应于所述第一操作，与所述第二电子设备建立Wi-Fi直连；接收用户的第二操作，所述第二操作用于打开所述第一电子设备的网络共享功能；所述第二电子设备用于：接收来自所述第一电子设备的所述第一数据；通过所述第一电子设备的网络共享功能与网络侧进行数据收发。本申请实施例通过用户便捷操作，实现将第一电子设备的上网能力共享给第二电子设备，使得第二电子设备获得了联网能力。
Patent WO-2021204149-A1 (WO)
Title: Sidelink data transmission method and apparatus, device, and storage medium
Inventor: LIU XING
IPC: H04W4/40
Filed: 2021-04-07
Abstract: Embodiments of the present application disclose a sidelink data transmission method and apparatus, a device, and a storage medium. The method comprises: receiving a negative acknowledgement sent by a receiving device, and used to indicate that the receiving device has failed to decode communication data; and starting a first configured-grant timer, such that a pre-configured sidelink grant is not used during the runtime of the first configured-grant timer. In the embodiments of the present application, a transmission device during sidelink communication has sufficient time to wait for a base station to schedule a retransmission, thus reducing transmission delays and retransmission scheduling delays for the transmission device, and improving applicability.
Patent WO-2022012099-A1 (WO)
Title: Linear sensor-based structure monitoring method and system
Inventor: LEI SHENGXIANG
IPC: G01D21/02
Filed: 2021-04-09
Abstract: A linear sensor (10, 11, 12, 14, 15)-based structure monitoring method and system. The stress, displacement, temperature, or vibration of a target structure is sensed by means of linear sensors (10, 11, 12, 14, 15) comprising a plurality of linear monitoring elements. The linear sensors (10, 11, 12, 14, 15) are first arranged in a net shape in the target structure or on the surface of the target structure; after completing the arrangement, position information of feature points of the linear sensors (10, 11, 12, 14, 15) is obtained; shape curves of the linear sensors (10, 11, 12, 14, 15) are drawn according to the position information of the feature points; the linear monitoring elements obtain and output monitoring data; the monitoring data is marked on the shape curves; the shape curves are updated in real time according to the monitoring data of the linear monitoring elements; and stress state curves of the linear sensors (10, 11, 12, 14, 15) are drawn. In a building structure monitoring system, the shape curves are displayed in a three-dimensional space coordinate system, and the shape curves, the monitoring position, and the stress state curves visually show the overall deformation of a building structure, thereby providing a reliable basis for determination of the structure safety state.
Patent WO-2022217404-A1 (WO)
Title: Photographic apparatus and mobile platform
Inventor: LEI LEI
IPC: H04N5/225
Filed: 2021-04-12
Abstract: A photographic apparatus (100) and a mobile platform (300). The photographic apparatus (100) comprises a housing (11), a lens (13), an image sensor (15) and a first driving mechanism (17), wherein the lens (13) is located in the housing (11); the lens (13) has an optical axis L; the image sensor (15) is located in the housing (11) and is disposed on an image side of the lens (13); the first driving mechanism (17) is mounted on the housing (11) and is connected to the image sensor (15); and the first driving mechanism (17) is used for driving the image sensor (15) to move back and forth along the optical axis L of the lens (13), such that the photographic apparatus (100) performs focusing.
Patent WO-2022027999-A1 (WO)
Title: Multi-transmission and reception point operation
Inventor: SUN HAITONG
IPC: H04W72/04
Filed: 2021-04-13
Abstract: Supporting transmission of multiple hybrid automatic repeat request acknowledgments (HARQ-ACKS) within a single slot may include encoding a first HARQ-ACK and a second HARQ-ACK within the single slot for transmission to a base station. The first HARQ-ACK may be transmitted via a first physical uplink control channel (PUCCH) and the second HARQ-ACK may be transmitted via a second PUCCH. Based on encoding the first HARQ-ACK and the second HARQ-ACK within the single slot, one or more additional uplink (UL) signals colliding with at least one of the first HARQ-ACK and the second HARQ-ACK within the single slot may be responded to based on a configuration of the UE.
Patent WO-2022217563-A1 (WO)
Title: Partial frequency sounding based on dci signaling
Inventor: LIU BINGCHAO
IPC: H04L5/00
Filed: 2021-04-16
Abstract: Methods and apparatuses for partial frequency sounding based on DCI signaling are disclosed. A method comprises receiving a first DCI indicating a P  F  value and a value indicating a starting position offset k  offset  value in frequency domain for a SRS resource set or a SRS resource or a SRS resource set group; and transmitting a first SRS resource, that is the SRS resource or one or more SRS resource (s) within the SRS resource set or one or more SRS resource (s) within SRS resource set (s) within the SRS resource set group, in m  P  contiguous resource blocks starting from formula (I) where m  P  is the largest integer that is equal to or smaller than formula (II) wherein, formula (III) is the indicated P  F  value, formula (IV) is the allocated sounding frequency band of the first SRS resource configured by RRC signaling, and formula (V) is the start position of the first SRS resource determined by RRC signaling.
Patent WO-2021213402-A1 (WO)
Inventor: XU YANG
IPC: H03H3/02
Filed: 2021-04-20
Abstract: Provided is a filter, comprising: a plurality of serial resonators, and a plurality of parallel resonators, wherein each resonator comprises a substrate (101), an acoustic mirror (103), a bottom electrode (102), a top electrode (106), and a piezoelectric layer (104). The top electrode (106) of at least one serial resonator and the top electrode (106) of at least one parallel resonator have or are provided with raised portions respectively at a connecting end of the top electrode (106) and a connecting end of a non-top electrode, and the top surface of the raised portion is beyond the top surface of an inner side portion of the top electrode (106). Each resonator having the raised portion comprises a conductive layer which is in contact with the corresponding electrode in the thickness direction of the resonator, wherein the conductive layer enables the raised portion to be beyond the top surface of the inner side portion of the top electrode (106), and the thickness of the conductive layer of the at least one serial resonator is greater than the thickness of the conductive layer of the at least one parallel resonator. Moreover, the present application further relates to a bulk acoustic wave resonator assembly and a method for manufacturing the bulk acoustic wave resonator assembly.
Patent WO-2022227029-A1 (WO)
Inventor: ZHOU CHENGKE
IPC: G03B13/18
Filed: 2021-04-30
Abstract: 一种跟焦器（100）及可移动平台，跟焦器（100）包括驱动组件（10）、跟焦齿轮（20）和位移调节装置（30）。跟焦齿轮（20）与驱动组件（10）连接，用于在驱动组件（10）的驱动下进行转动运动。位移调节装置（30）分别与驱动组件（10）和跟焦齿轮（20）连接，用于调整驱动组件（10）和跟焦齿轮（20）的相对位置，以使跟焦齿轮（20）能够相对驱动组件（10）移动。跟焦器（100）的跟焦齿轮（20）能够单独移动，以适配不同拍摄装置（200）的镜头（201），当应用于云台相机时，对于云台的调平影响较小，使云台调平容易，节省能耗，使云台相机的控制更平稳。
Patent WO-2022232977-A1 (WO)
Inventor: SUN XIMING
IPC: H02P21/00
Filed: 2021-05-06
Abstract: 一种基于快速积分终端滑模及干扰估计的永磁同步电机有限时间调速控制方法，首先，确定受系统参数不确定性以及未知负载转矩影响下的永磁同步电机速度环数学模型。其次，基于终端滑模控制的思想设计改进型快速积分终端滑模面。然后，针对永磁同步电机系统中存在的干扰，提出基于自适应模糊系统的干扰估计方法；在此基础上设计永磁同步电机速度控制器。最后，完成整个技术方案的具体实现。本发明通过设计快速积分终端滑模面及滑模控制律，保证电机速度跟踪误差在有限时间内收敛到零，提高永磁同步电机调速系统的快速性，同时使用自适应模糊算法对系统内、外干扰进行在线估计并实时补偿，增强调速系统的鲁棒性和抗干扰能力，且有效降低滑模控制项切换增益，进而削弱抖振现象。
Patent WO-2021233126-A1 (WO)
Title: Nebulizing device
Inventor: GU Yu
IPC: A61M11/00
Filed: 2021-05-06
Abstract: A nebulizing device (100), comprising: a hollow housing (101) having a cavity (110), the cavity (110) having a liquid channel (111) located therein and a nebulizing nozzle (103) located at a distal end of the liquid channel (111) and having a plurality of fluid outlets; an injector (102), which is at least partially accommodated in the cavity (110) and comprises a liquid storage device (120) for accommodating liquid; a liquid conveying pipe (121) having a liquid suction end (122) and a liquid outlet end (123), the liquid suction end (122) being located in the liquid storage device (120), the liquid outlet end (123) being located in the liquid channel (111), and the liquid outlet end (123) and the nebulizing nozzle (103) jointly define a liquid cavity (124); the injector (102) near end, which is coupled to the liquid conveying pipe (121) and used for receiving pushing force, so that the liquid conveying pipe (121) can move in the cavity from the near-end position to the far-end position to form preset nebulizing pressure at the nebulizing nozzle (103), and the liquid is enabled to flow out through the nebulizing nozzle (103) and be collided in an intersecting mode, to generate spray having a predetermined initial plume speed; at least 50% of the droplets in the spray have an average particle size ranging 1 μm to 10 μm.