baber/WOPTO huggingface dataset:
Patent WO-2022061910-A1 (WO)
Title: 一种包装缓冲材料
Inventor: KUO SHENG-HSI
IPC: B65D85/30
Filed: 2020-09-28
Abstract: 一种包装缓冲材料，其包括第一缓冲体（1）和第二缓冲体（2），第二缓冲体（2）的一端设有插接槽（101），第一缓冲体（1）的一端设有插接部（201），插接部（201）垂直连接于插接槽（101）并通过水溶性胶粘剂粘接；第一缓冲体（1）包括第一主缓冲体（11）和第一副缓冲体（12），第一主缓冲体（11）设于两第一副缓冲体（12）之间，第一主缓冲体（11）设有第一连接部（111），第一副缓冲体（12）设有第二连接部（121），第一连接部（111）与第二连接部（121）通过水溶性胶粘剂粘接；第二缓冲体（2）包括第二主缓冲体（21）和第二副缓冲体（22），第二主缓冲体（21）设于两第二副缓冲体（22）之间，第二主缓冲体（21）设有第三连接部（211），第二副缓冲体（22）设有第四连接部（221），第三连接部（211）与第四连接部（221）通过水溶性胶粘剂粘接。该包装缓冲材料具有便于回收利用的效果。
Patent WO-2021063394-A1 (WO)
Title: Methods and apparatuses for handling retransmission on configured uplink grant resources
Inventor: CHIN HENGLI
IPC: H04W72/04
Filed: 2020-09-30
Abstract: A user equipment (UE) includes a processor coupled to the one or more non-transitory computer-readable media containing computer-executable instructions embodied therein. The processor is configured to execute the computer-executable instructions to determine a transmission of a Medium Access Control (MAC) protocol data unit (PDU) using a first uplink (UL) resource associated with a first configured grant (CG) configuration has not been successfully performed, the first UL resource being associated with a first hybrid automatic repeat request (HARQ) process, and the MAC PDU being obtained for the first HARQ process; receive a second CG configuration associated with a second UL resource for another transmission, the second UL resource being associated with a second HARQ process; and transmit the MAC PDU on the second UL resource when it is determined that the second UL resource is suitable for transmitting the MAC PDU.
Patent WO-2021083034-A1 (WO)
Title: Negative electrode material and preparation method therefor, lithium ion battery, and terminal
Inventor: SU HANG
IPC: H01M4/38
Filed: 2020-10-23
Abstract: Embodiments of the present invention provide a negative electrode material, comprising a doped silicon-based material. The doped silicon-based material comprises a silicon-based material and a doping metal element distributed in particles of the silicon-based material, the silicon-based material comprising nano-silicon or silicon monoxide, and the doping amount of the doping metal element being 1-1000 ppm. By doping with an extremely low content of the metal element in the crystal structure of the silicon-based material, the negative electrode material can maintain the stability of the original crystal structure of the silicon-based material while improving the conductivity of the silicon-based material, so that the energy density of a battery cell can be effectively increased, and powdering of the silicon-based material during the charging and discharging process can be prevented. Embodiments of the present invention further provide a preparation method for the negative electrode material, a lithium-ion battery, and a terminal.
Patent WO-2022082773-A1 (WO)
Inventor: WANG MIAO
IPC: G09G3/32
Filed: 2020-10-23
Abstract: 一种显示面板及显示装置，包括显示区域（AA）和包围显示区域（AA）的非显示区域（BB），显示区域（AA）包括：阵列排布的多个子像素（P1），子像素（P1）包括像素电路（100）和发光器件（L1）；阳极复位晶体管（T7）的控制端与下一行子像素（P1）中的复位晶体管（T1）的控制端电连接；非显示区域（BB）包括：一行虚设子像素（P2），各虚设子像素（P2）与子像素列一一对应，虚设子像素（P2）包括虚设像素电路（200）和虚设发光器件（L2），虚设发光器件（L2）不发光；虚设像素电路（200）包括虚设阳极复位晶体管（T7'），虚设阳极复位晶体管（T7'）的第一端与初始化信号线（Vinit）电连接，虚设阳极复位晶体管（T7'）的第二端与虚设发光器件（L2）的阳极电连接，虚设发光器件（L2）的阴极与第一电源端电（VSS）连接；各虚设阳极复位晶体管（T7'）的控制端与第一行子像素（P1）中复位晶体管（T1）的控制端对应电连接。
Patent WO-2021088681-A1 (WO)
Inventor: LV HAO
IPC: G05D1/10
Filed: 2020-10-27
Abstract: 一种无人机长距离循迹飞行方法、装置、设备及存储介质，方法包括：获取无人机在上一时刻对应的上一目标路径点和路径点队列，以及在当前时刻对应的当前飞行位置（S101）；基于当前飞行位置从路径点队列中确定当前时刻对应的当前目标路径点（S102）；基于无人机在历史时间内的飞行位置信息集及当前飞行位置，结合预设的局部规划算法，生成无人机由当前飞行位置飞向当前目标路径点的局部路径（S103）；将局部路径添加至上一时刻对应的上一全局路径，得到当前时刻对应的当前全局路径，以使无人机沿当前全局路径飞行（S104）。结合局部规划算法与全局路径，使无人机整体上沿着预设轨迹飞行。
Patent WO-2021243939-A1 (WO)
Inventor: SHEN YINGXIN
IPC: B32B27/02
Filed: 2020-10-30
Abstract: A medium-flame-retardant copper ion fiber composite fabric and a fabrication method therefor, the medium-flame-retardant copper ion fiber composite fabric comprising 20% of copper fibers combined with 80% of polyester. Also provided is the fabrication method for the medium-flame-retardant copper ion fiber composite fabric, the method comprising the following steps: S1, gluing: gluing a copper ion fiber fabric having a mass of 50-100 g by means of a gluing machine; and S2, laminating: laminating the 50-100 g of copper ion fiber fabric and 200-400 g of a polyester fabric by adopting a PUR hot melt adhesive machine. The medium-flame-retardant copper ion fiber composite fabric uses the ratio of 20% copper fibers combined with 80% polyester, and can both ensure the antibacterial effect of the fabric, and improve the toughness of the fabric, making the fabric durable and washable. The copper ion fiber fabric and the polyester fabric are processed by means of gluing, laminating, maintaining, edge cutting, cleaning, liquid preparing, absorbing and soaking, cleaning, rail pressing and drying, so that the medium-flame-retardant copper ion fiber composite fabric is formed.
Patent WO-2021203688-A1 (WO)
Inventor: WAN JINJUAN
IPC: A23K10/30
Filed: 2020-11-03
Abstract: 一种淡水鱼用保肝护肠免疫增强组合物及其制备和应用，以重量份数计，包括如下原料：穿心莲15-27重量份，大青叶18-22重量份，辣蓼10-15重量份，大黄8-12重量份，五倍子8-12重量份。组合物的制备方法，各原料先进行粗粉碎，过80目筛网，再经超微粉碎机低温破壁粉碎，过300目的筛网后，充分混匀。
Patent WO-2021093843-A1 (WO)
Inventor: TSOU CHI-HUI
IPC: C08B37/08
Filed: 2020-11-13
Abstract: L'invention concerne un procédé d'élevage d'Hermetia illucens (L.) et un procédé de préparation d'une poudre de chrysalide d'Hermetia illucens (L.). Le procédé de préparation comprend les étapes suivantes : S1, le séchage d'une chrysalide d'Hermetia illucens (L.), puis la mouture de celle-ci ; S2, l'ajout de la chrysalide d'Hermetia illucens (L.) en poudre à une solution aqueuse d'hydroxyde de sodium, le mélange de celles-ci, puis la réalisation d'une séparation et d'un filtrage ; S3, l'ajout de la chrysalide dans une solution d'acide chlorhydrique, le mélange de celles-ci, puis la réalisation d'une séparation et d'un filtrage ; S4, l'ajout de la chrysalide dans une solution aqueuse d'hydroxyde de sodium, le mélange de celles-ci, puis la réalisation d'une séparation et d'un filtrage ; et S5, le séchage de la chrysalide, puis l'extraction par tamisage d'une poudre de prétraitement de chrysalide d'Hermetia illucens (L.) granulaire. L'invention concerne également un procédé de préparation d'un matériau composite de chrysalide d'Hermetia illucens (L.), un procédé de préparation d'un film composite de chrysalide d'Hermetia illucens (L.), et un additif antibactérien et antifongique. Le rendement en chitosane dans la chrysalide d'Hermetia illucens (L) peut être efficacement augmentée, la poudre de chrysalide préparée peut être utilisée pour préparer une fibre et un film composites polymères de chrysalide d'Hermetia illucens (L.), etc., et l'effet antibactérien est considérablement amélioré. La poudre de chrysalide d'Hermetia illucens (L.) peut être composée avec une poudre de coquille d'huître pour former un nouvel additif antibactérien et antifongique.
Patent WO-2022116057-A1 (WO)
Inventor: FU ZHE
IPC: H04W74/08
Filed: 2020-12-02
Abstract: Provided are a resource transmission method, a terminal device, and a network device, which are applied to the technical field of communications and can reduce or prevent transmission interference and waste of transmission resources. The embodiment of the present invention involves: according to first information, determining not to perform listen before talk (LBT) detection and/or resource transmission, or determining to perform LBT detection and/or resource transmission for a first resource, wherein the first information is used for indicating at least one of the following: a second resource, performing LBT detection and/or resource transmission, and not performing LBT detection and/or resource transmission.
Patent WO-2022011942-A1 (WO)
Title: External device, handheld gimbal assembly and handheld gimbal
Inventor: MA CHENGXIANG
IPC: F16M13/04
Filed: 2020-12-10
Abstract: An external device (50), a handheld gimbal assembly (300) and a handheld gimbal (60). The handheld gimbal (60) is provided with a clamping groove (61); the external device (50) comprises a body (51), a clamping hook (52) and an elastic piece (53); the clamping hook (52) may be located in a locking position and a release position relative to the body (51); when the external device (50) is connected onto the handheld gimbal (60), the clamping hook (52) is located in the locking position and cooperates with the clamping groove 61); when the clamping hook (52) is in the release position, the clamping hook (52) is separated from the clamping groove (61); the clamping hook (52) is closer to the center of the body (51) when in the released position than in the locking position; two ends of the elastic piece (53) are connected to the body (51) and the clamping hook (52) respectively, and the elastic piece (53) is used for providing the clamping hook (52) with a restoring force for maintaining same in the locking position; the clamping hook (52) is switched from the locking position to the release position under the pushing of an external force; and when the external force is removed, the clamping hook (52) is switched from the release position to the locking position under the action of the restoring force.
Patent WO-2022068070-A1 (WO)
Inventor: LIU YANAN
IPC: H05B3/34
Filed: 2020-12-14
Abstract: The present invention relates to the technical field of composite material forming and provides a flexible carbon nanotube film self-heating platform for assisting in automated placement and a method, giving the surface of a placement tool a heating function, thereby reducing the difference between the placement tool and a placement process in temperature, and increasing the viscosity of a placement material, thus improving the placement effect. The platform comprises an automated placement mold, a carbon nanotube film, and a vacuum bag that are disposed sequentially from bottom to top; the carbon nanotube film is connected to a power source by means of wires; the vacuum bag is connected to a vacuuming device by means of a pipeline; the carbon nanotube film is of any area and covers a placement region of the automated placement mold; and the vacuum bag is bonded to the automated placement mold by a sealant and covers the region where the carbon nanotube film is located. The technical solution provided by the present invention is suitable for the process of automated fiber placement/automated tape placement.
Patent WO-2021135957-A1 (WO)
Title: Square rod fixing assembly and optical apparatus
Inventor: ZHOU RIMING
IPC: G02B7/00
Filed: 2020-12-17
Abstract: Disclosed are a square rod fixing assembly (100) and an optical apparatus using the square rod fixing assembly (100). The square rod fixing assembly comprises a square rod support (1), wherein the square rod support (1) comprises a first support portion (12) and a second support portion (13); and an elastic member (2), wherein the elastic member (2) can be fixed to the square rod support (1), and forms an accommodating space with the first support portion (12) and the second support portion (13), and a square rod (3) can be placed in the accommodating space; and the elastic member (2) comprises at least two abutting portions (23, 24) extending towards the accommodating space, the abutting portions (23, 24) abut against the square rod (3), and the at least two abutting portions (23, 24) of the elastic member (2) cooperate with the first support portion (12) and the second support portion (13) to fix the square rod (3) in the accommodating space. Compared with the related art, the square rod fixing assembly (100) and the optical apparatus both have a good stability and a high reliability, are easy to mount, and have a high universality.
Patent WO-2022133954-A1 (WO)
Inventor: LIU PENG
IPC: G06F9/50
Filed: 2020-12-24
Abstract: L'invention concerne un procédé, un appareil et un système de rendu d'images, et un support d'enregistrement lisible par ordinateur. Le procédé consiste à : acquérir un résultat de détection d'objet cible pour une image précédente de l'image courante, le résultat de détection d'objet cible étant utilisé pour indiquer le nombre d'objets cibles inclus dans l'image précédente ; sur la base du résultat de détection d'objet cible, déterminer le nombre de fils qui doivent être démarrés ; et démarrer le nombre de fils pour effectuer un traitement de rendu sur l'image courante.
Patent WO-2021143500-A1 (WO)
Title: Foldable mobile terminal
Inventor: LIAO LI
IPC: H04M1/02
Filed: 2020-12-28
Abstract: An embodiment of the present application provides a foldable mobile terminal. The foldable mobile terminal comprises a rotating shaft mechanism, two casing members, and a flexible screen, and the flexible screen is positioned in the two casing members and covers the rotating shaft mechanism. The rotating shaft mechanism comprises a main shaft and two rotation portions, and the rotation portions rotate along with the casing members at the corresponding sides. The flexible screen is fixed to the two casing members and the two rotation portions, so as to prevent, during a process of folding or expanding the foldable mobile terminal, the flexible screen from sliding relative to the two casing members or the rotation portions, thereby reducing the risk of damaging the flexible screen. In addition, a portion of the flexible screen opposite to the main shaft is freely bendable, such that a portion of the flexible screen disposed at the rotating shaft mechanism is accommodated within an accommodation space formed by the two rotation portions and the main shaft, thereby preventing the flexible screen from being affected by a pulling or pressing force, increasing the service life of the flexible screen.
Patent WO-2022151507-A1 (WO)
Inventor: Shi Zehao
IPC: G05D1/00
Filed: 2021-01-18
Abstract: 一种可移动平台的控制方法，包括：获取可移动平台采集得到的目标物所在场景的深度图（S201）；获取深度图上包括目标物的第一目标区域（S202）；调整第一目标区域，以使第一目标区域中对应目标物的区域的占比增加，得到跟踪区域（S203）；根据跟踪区域的深度信息，控制可移动平台相对于目标物运动（S204）。
Patent WO-2021244063-A1 (WO)
Inventor: LIU PENG
IPC: H01Q1/12
Filed: 2021-02-07
Abstract: La présente invention concerne une antenne à plaque, comprenant au moins une structure d'alimentation, un élément de support et une feuille de couplage en champ proche, l'élément de support étant fixé sur la structure d'alimentation, la feuille de couplage en champ proche étant fixée sur l'élément de support, et au moins une paire d'évidements symétriques étant situés au niveau d'un bord de la feuille de couplage en champ proche. La présente invention concerne en outre un réseau d'antennes comprenant au moins l'une des antennes à plaque. Ainsi, la présente invention peut augmenter significativement le degré d'isolation entre antennes, améliorer les paramètres S de l'antenne à plaque dans le réseau et n'affecte pas les indices de diagramme directionnel.
Patent WO-2021160085-A1 (WO)
Inventor: HAO QUN
IPC: G06N3/04
Filed: 2021-02-08
Abstract: 基于径向基函数的可变形反射镜面形控制方法及装置，计算简单、易于实现、通用性强，并且能较高精度地控制可变形反射镜生成复杂面形，从而实现复杂的波前矫正及像差补偿功能。该方法处理神经网络训练集样本，获取神经网络训练集元素，将各个样本中的可变形反射镜的面形利用径向基函数进行表征，将样本中面形的表征参数作为神经网络的输入，将该面形对应的各压电陶瓷的电压作为神经网络的对应输出，对神经网络进行训练，神经网络的训练次数与样本数量一致，最终获得完成训练的神经网络，验证神经网络训练效果，根据所需生成的面形的表征参数，利用神经网络控制可变形镜生成所需面形。
Patent WO-2021185015-A1 (WO)
Title: Pixel circuit, display panel and display apparatus
Inventor: WANG LI
IPC: G09G3/3233
Filed: 2021-02-09
Abstract: Provided are a pixel circuit, a display panel and a display apparatus. By adjusting the magnitude ratio of a first compensation capacitor (C1) to a second compensation capacitor (C2), which compensation capacitors are added to a pixel circuit, the voltage of a third node (N3) and the voltage of a fourth node (N4) can be adjusted, such that the voltage of the third node (N3) is greater than the voltage of a first node (N1), and the voltage of the fourth node (N4) is less than the voltage of the first node (N1); and the third node (N3) reversely charges the first node (N1), and the first node (N1) leaks electricity towards the fourth node (N4). In this way, the charging process of the first node (N1) can be complementary to the electric leakage process thereof, such that the potential of the first node (N1) is balanced, electric leakage of the first node (N1) can be reduced, and the signal voltage holding ratio of a storage capacitor (Cst) in the pixel circuit is improved, thereby realizing flicker-free display and low-frame-frequency driving, and thus improving the display quality of a display product.
Patent WO-2021164697-A1 (WO)
Inventor: WANG YIHAN
IPC: A61K31/395
Filed: 2021-02-18
Abstract: 提供了一种取代的酰胺衍生物及包含该化合物的组合物及其用途，所述的取代的酰胺衍生物为式(I)所示化合物或其互变异构体、立体异构体、前药、晶型、药学上可接受的盐、水合物或溶剂合物。所述化合物及其组合物可用于治疗和/或预防野生的和/或突变的EGFR和/或HER2激酶介导的肿瘤。
Patent WO-2021164740-A1 (WO)
Title: Use of interferon in preparing drug for preventing coronavirus infection or preventing disease caused by coronavirus infection
Inventor: MENG ZHONGJI
IPC: A61P31/16
Filed: 2021-02-19
Abstract: Disclosed are a use of an interferon in preparing a drug for preventing novel coronavirus SARS-CoV-2 infection or a disease COVID-19 caused by the novel coronavirus infection, and a drug for preventing novel coronavirus infection or preventing a disease COVID-19 caused by the novel coronavirus infection.
Patent WO-2021227593-A1 (WO)
Title: Linear silicon-controlled dimming driving apparatus for led lamp
Inventor: WU LIANGJU
IPC: H05B45/59
Filed: 2021-02-22
Abstract: Provided is a linear silicon-controlled dimming driving apparatus for an LED lamp. The apparatus comprises a rectifier unit, a linear constant-current unit, a filter unit and a strobe-removal control unit, such that an output load unit receives electric energy from an external power source at a front end and is then driven after the electric energy passes through the rectifier unit, the linear constant-current unit, the filter unit and the strobe-removal control unit, wherein the output load unit is connected to a rear end of the strobe-removal control unit; the linear constant-current unit further comprises a main control chip and a protective unit; the linear constant-current unit is arranged as a main body; the linear constant-current unit is connected to a rear end of the rectifier unit; and the strobe-removal control unit and the filter unit are respectively connected to the linear constant-current unit.
Patent WO-2022183492-A1 (WO)
Inventor: XIA LIN
IPC: H01M50/503
Filed: 2021-03-05
Abstract: 一种纽扣电池（1）以及用电装置，涉及电池技术领域。纽扣电池（1）包括壳组件（100）、电极组件（200）、第一极耳（300）与第二极耳（400）。其中，壳组件（100）包括第一导电部（110）与第二导电部（120），该第一导电部（110）与第二导电部（120）之间绝缘。电极组件（200）包括极性相反的第一极片（210）与第二极片（220）。第一极耳（300）包括分别与各第一极片（210）连接的第一连接部（310），以及呈连续弯曲状的第一延伸部（320）；第一导电部（110）与第二导电部（120）中的一个与第一极片（210）连接。该纽扣电池（1）在跌落时，壳组件（100）内部的电极组件（200）相对壳组件（100）发生位移；由于第一极耳（300）的第一延伸部（310）呈连续弯曲状，其在该过程中在冲击力的作用下容易受力变形，并可通过该变形过程来吸收部分冲击力的能量。故该纽扣电池（1）能够有效降低纽扣电池（1）跌落时，极耳断裂的隐患。
Patent WO-2021185200-A1 (WO)
Title: Method and system for correcting candle wick and candle production line
Inventor: QIU WENQUAN
IPC: F23D3/28
Filed: 2021-03-15
Abstract: Disclosed in the present invention are a method and system for correcting a candle wick and a candle production line. The root space coordinates and end space coordinates of candle wicks and the angles of the candle wicks projected to a horizontal plane are acquired by means of 3D imaging of a candle imaging mechanism, so as to calculate the clamping space coordinates and straightening space coordinates for correcting the candle wicks. A control module controls a candle wick correction mechanism according to the calculated data, and a manipulator of the candle wick correction mechanism drives a clamping jaw to automatically correct a candle wick requiring a correction. Thus, a mechanical automatic system is provided for replacing manual operation, improving automation level, thereby improving the working efficiency of candle wick correction. Defective products can be detected and transferred to a defective product recycling position for further treatment, improving the yield rate of candles. The present invention is used for the technical field of candle production and manufacturing.
Patent WO-2021197294-A1 (WO)
Inventor: XIAO JIASHENG
IPC: G02B5/00
Filed: 2021-03-30
Abstract: The present disclosure provides a display device. The display device comprises: an optical imaging apparatus comprising an image source element, a splitting element and a reflecting element which are configured for optical path alignment; and an absorption element, the shape of the absorption element and the arrangement position of the absorption element in the display device enabling the absorption element to absorb non-imaging light in a scene to be displayed without shielding imaging light used for generating a display image of the scene. In the display device, the absorption element absorbs the non-imaging light in the scene to be displayed, reducing the non-imaging light in the display device, and thereby reducing the influence of the non-imaging light on the scene and improving the display quality of the display image of the scene.
Patent WO-2022205133-A1 (WO)
Inventor: JIA GUANGXIN
IPC: B60T13/00
Filed: 2021-03-31
Abstract: L'invention concerne un appareil de frein hydraulique et un véhicule. L'appareil de frein hydraulique peut être appliqué à des véhicules tels qu'un véhicule intelligent, un véhicule fonctionnant aux nouvelles énergies, un véhicule connecté et un véhicule à conduite intelligente. L'appareil de frein hydraulique comprend : un premier bloc hydraulique (10) ; une partie de cylindre principal (110), qui est agencée au niveau du premier bloc hydraulique (10), la partie de cylindre principale (110) comprend une tige de poussée (111), un piston (112), une coupelle de cuir principale (113) du piston (112) et une coupelle de cuir auxiliaire (114) du piston (112), et le piston (112) est relié à la tige de poussée (111) ; un aimant permanent (120), qui est agencé à l'intérieur du piston (112) ; et un capteur de course (130), qui est agencé entre la coupelle de cuir principale (113) et la coupelle de cuir auxiliaire (114), et est utilisé pour mesurer le mouvement de l'aimant permanent (120), de manière à déterminer une quantité de mouvement du piston (112). La distance entre le capteur de course et l'aimant permanent peut être plus petite, de sorte que la précision de signal du capteur de course peut être assurée.
Patent WO-2021208892-A1 (WO)
Title: Paging proxy method, and user equipment
Inventor: LIU XUANBING
IPC: H04W8/18
Filed: 2021-04-13
Abstract: Disclosed are a paging proxy method, and a user equipment (UE). The paging proxy method comprises: receiving target information when a first UE is paged by proxy by a second UE; on the basis of the target information, determining a target behavior pattern or target synchronization requirement, the target synchronization requirement being used to determine the target behavior pattern, and the target synchronization requirement referring to whether the first UE must remain synchronized with a first network device.
Patent WO-2022068174-A1 (WO)
Inventor: SUN QIWEN
IPC: G01N30/72
Filed: 2021-04-13
Abstract: 一种测定高温费托合成油中芳烃组成及含量的方法，首先将待测高温费托合成油分成两份，其中第一份高温费托合成油与溴溶液反应，反应后分层，取上层有机相浓缩上样于固相萃取柱A，通过洗脱剂I淋洗和洗脱，收集洗脱液，浓缩，经气相色谱-质谱联用分析出高温费托合成油中的单环芳烃及其含量；再将第二份高温费托合成油直接上样于固相萃取柱B，通过洗脱剂I和洗脱剂II淋洗和洗脱，收集洗脱液，浓缩，经气相色谱-质谱联用分析出高温费托合成油中的多环芳烃及其含量。实现了高温费托合成油中单环芳烃与多环芳烃的快速分离，可有效地解决高温费托合成油中芳烃定性和定量检测困难的问题。