摘要：【中文】本发明公开了一种缩略图生成方法、装置、设备和介质。其中，所述方法包括：在视频展示页面，若检测到视频滑动停止操作，则根据页面窗口的停止位置确定目标视频；采用预设规则依次确定所述目标视频的缩略图；将所述缩略图作为所述目标视频的封面图片在视频展示页面中展示。本实施例的技术方案，实现了在用户快速滑动大量视频时，为用户及时的提供当前界面的缩略图，提高用户的使用体验。 【EN】The invention discloses a thumbnail generation method, a thumbnail generation device, equipment and a thumbnail generation medium. Wherein the method comprises the following steps: on a video display page, if the video sliding stopping operation is detected, determining a target video according to the stopping position of a page window; determining thumbnails of the target videos in sequence by adopting a preset rule; and displaying the thumbnail as a cover picture of the target video in a video display page. According to the technical scheme, the thumbnail of the current interface is timely provided for the user when the user slides a large amount of videos quickly, and the use experience of the user is improved.

摘要：【中文】本发明公开了一种双框架载重平台，具体涉及搬运装置领域，包括载重平台A，所述载重平台A一端固定连接有外框架，所述外框架与载重平台A之间设置有连接板A，所述载重平台A上固定连接有推动油缸A，所述推动油缸A上设置有减压阀A，所述外框架另一侧设置有载重平台B，所述载重平台B一端固定连接连接有内框架，所述载重平台B和内框架之间设置有连接板B，所述载重平台B上固定连接有推动油缸B，所述推动油缸B上设置有减压阀B，所述外框架中部设置有中横杆A，所述内框架中部设置有中横杆B；上述方案提出的双框架载重平台，结构紧凑、成本低廉。 【EN】The invention discloses a double-frame load-carrying platform, particularly relates to the field of carrying devices, and comprises a load-carrying platform A, wherein one end of the load-carrying platform A is fixedly connected with an outer frame, a connecting plate A is arranged between the outer frame and the load-carrying platform A, a pushing oil cylinder A is fixedly connected to the load-carrying platform A, a pressure reducing valve A is arranged on the pushing oil cylinder A, a load-carrying platform B is arranged on the other side of the outer frame, one end of the load-carrying platform B is fixedly connected with an inner frame, a connecting plate B is arranged between the load-carrying platform B and the inner frame, a pushing oil cylinder B is fixedly connected to the load-carrying platform B, a pressure reducing valve B is arranged on the pushing oil cylinder B, a middle cross; the double-frame load-carrying platform provided by the scheme has a compact structure and low cost.

摘要：【中文】本发明提出一种基于交流双向励磁的恒压恒频发电控制方法，通过采集主发电机的转速、定子绕组三相电压、三相电流作为输入量，通过双向励磁控制算法模块输出变占空比的PWM波，给发电机提供方向可变的励磁电流，通过调节交流励磁电流的幅值和频率，实现变速恒频控制。本发明采用的控制方法简单，调节性能优良，提高了变速发电系统的发电效率、可靠性、稳定性和高效性，在工程应用领域有很强的使用价值，对于未来飞机变速恒频电源系统性能的提升有着重要意义。 【EN】The invention provides a constant-voltage constant-frequency power generation control method based on alternating-current bidirectional excitation. The control method adopted by the invention is simple, has excellent regulation performance, improves the power generation efficiency, reliability, stability and high efficiency of the variable-speed power generation system, has very strong use value in the field of engineering application, and has important significance for improving the performance of the variable-speed constant-frequency power supply system of the airplane in the future.

摘要：【中文】本发明涉及氢燃料电池技术领域，具体为一种氢燃料电池控制系统，包括电堆模块、供氢子系统、供氧子系统、热管理系统和水管理系统，所述电堆模块用以为氢燃料电池车供电，所述供氢子系统通过设置的第一管道与所述电堆模块相连接，且所述供氢子系统为所述电堆模块提供氢气，所述供氧子系统通过设置的第二管道与所述电堆模块相连接，且所述供氧子系统为所述电堆模块提供氧气，所述热管理系统用于为所述电堆模块提供合适的温度环境进行电化学反应，所述水管理系统用于为所述电堆模块提供合适的湿度环境进行电化学反应。该氢燃料电池控制系统通过设置的多个系统为电堆模块提供适宜的反应条件和反应环境，提高电堆模块的工作效率和使用寿命。 【EN】The invention relates to the technical field of hydrogen fuel cells, in particular to a hydrogen fuel cell control system which comprises an electric pile module, a hydrogen supply subsystem, an oxygen supply subsystem, a thermal management system and a water management system, wherein the electric pile module is used for supplying power to a hydrogen fuel cell vehicle, the hydrogen supply subsystem is connected with the electric pile module through a first pipeline, the hydrogen supply subsystem provides hydrogen for the electric pile module, the oxygen supply subsystem is connected with the electric pile module through a second pipeline, the oxygen supply subsystem provides oxygen for the electric pile module, the thermal management system is used for providing a proper temperature environment for the electric pile module to perform electrochemical reaction, and the water management system is used for providing a proper humidity environment for the electric pile module to perform electrochemical reaction. The hydrogen fuel cell control system provides proper reaction conditions and reaction environments for the electric pile module through the multiple systems, and improves the working efficiency and the service life of the electric pile module.

摘要：【中文】一种皮带输送机防跑偏结构，包括防跑偏装置、支架装置，防跑偏装置设置在支架装置顶部；本皮带输送机防跑偏结构可用于对现有皮带输送机的改造，也可用于新生产的皮带输送机；本皮带输送机防跑偏结构具体应用时，通过支架装置固定设置在托辊支架上，位于托辊轴向两侧，防跑偏装置高度对应皮带侧边高度；皮带输送机工作时，跑偏的皮带侧边与防跑偏装置接触，防跑偏装置阻挡皮带继续跑偏；当皮带侧边与防跑偏装置摩擦产生细绳飞边时，防跑偏装置会阻挡细绳飞边缠绕在芯轴和辊套上；随着细绳飞边与防跑偏装置的继续摩擦，细绳飞边会逐渐脱落，彻底防止了细绳飞边缠绕在芯轴和辊套上，解决了以往皮带跑偏所导致的托辊失效、电机发热甚至烧毁问题。 【EN】A deviation-preventing structure of a belt conveyor comprises a deviation-preventing device and a support device, wherein the deviation-preventing device is arranged at the top of the support device; the anti-deviation structure of the belt conveyor can be used for improving the existing belt conveyor and can also be used for a newly produced belt conveyor; when the anti-deviation structure of the belt conveyor is applied specifically, the anti-deviation structure is fixedly arranged on the carrier roller support through the support device and is positioned on two axial sides of the carrier roller, and the height of the anti-deviation device corresponds to the height of the side edge of the belt; when the belt conveyor works, the side edge of the off-tracking belt is contacted with the off-tracking prevention device, and the off-tracking prevention device prevents the belt from continuing off-tracking; when the side edge of the belt rubs against the deviation preventing device to generate the thin rope flashes, the deviation preventing device can prevent the thin rope flashes from being wound on the mandrel and the roller sleeve; along with the continuous friction of the string fins and the deviation preventing device, the string fins can gradually fall off, the string fins are thoroughly prevented from being wound on the mandrel and the roller sleeve, and the problems of carrier roller failure, motor heating and even burning caused by the deviation of the belt in the past are solved.

摘要：【中文】本发明公开了一种电子设备的测试方法、测试服务器及测试系统，该方法包括：获取基于第一测试数据对第一目标设备进行测试形成的第一测试结果，其中，所述第一测试数据中包括至少一个测试项目；根据所述第一测试结果，并基于预设筛选规定对第一测试数据中的测试项目进行调整，形成第二测试数据；在接收到第一测试请求的情况下，输出所述第二测试数据，以基于所述第二测试数据对第二目标设备进行测试，其中，所述第二目标设备与所述第一目标设备是相同或相关联的设备。该测试方法能够根据当前的实际测试情况，对需要进行测试的目标设备所用的测试数据进行动态的调整，从而在既保证测试质量的前提下还能够提高测试效率。 【EN】The invention discloses a test method, a test server and a test system of electronic equipment, wherein the method comprises the following steps: the method comprises the steps of obtaining a first test result formed by testing a first target device based on first test data, wherein the first test data comprises at least one test item; according to the first test result, adjusting the test items in the first test data based on a preset screening rule to form second test data; in the event that a first test request is received, outputting the second test data to test a second target device based on the second test data, wherein the second target device is the same or associated device as the first target device. The test method can dynamically adjust the test data used by the target equipment to be tested according to the current actual test condition, thereby improving the test efficiency on the premise of ensuring the test quality.

摘要：【中文】本申请实施例提供了一种投屏方法，用于计算机设备中，所述方法包括：获取所述计算机设备的第一能力信息；获取目标终端的第二能力信息，其中，所述目标终端被配置为所述计算机设备的投屏对象；根据所述第一能力信息和所述第二能力信息，确定所述计算机设备中的多媒体内容的渲染操作执行方；如果所述计算机设备为所述渲染操作执行方，则对所述多媒体内容进行渲染操作；发送渲染后的多媒体内容至所述目标终端。本实施例所述的投屏方法可以根据投屏方和投屏对象的能力，动态确定特效渲染操作的执行方，避免了传统投屏操作中特效渲染不佳导致的播放效果不佳的问题，从而有效地提高了观影体验。 【EN】The embodiment of the application provides a screen projection method, which is used in computer equipment and comprises the following steps: acquiring first capability information of the computer equipment; acquiring second capability information of a target terminal, wherein the target terminal is configured as a screen projection object of the computer equipment; determining a rendering operation executing party of the multimedia content in the computer equipment according to the first capability information and the second capability information; if the computer equipment is the rendering operation executing party, performing rendering operation on the multimedia content; and sending the rendered multimedia content to the target terminal. The screen projection method can dynamically determine the execution party of the special effect rendering operation according to the screen projection party and the capability of the screen projection object, and avoids the problem of poor playing effect caused by poor special effect rendering in the traditional screen projection operation, so that the viewing experience is effectively improved.

摘要：【中文】本发明公开一种7‑氨基庚酸盐酸盐的合成方法，属于有机合成领域：将环庚酮加入到甲醇溶液中，加入盐酸羟胺，升温反应得到庚内酰胺，将得到的反应液中加入浓盐酸，回流反应，将反应液减压脱除溶剂后用二氯甲烷降温析晶，得到7‑氨基庚酸盐酸盐。本发明具本发明操作简便，生产中绿色环保，所得的产品收率较高，更适于规模化生产。 【EN】The invention discloses a synthesis method of 7-aminoheptanoic acid hydrochloride, belonging to the field of organic synthesis: adding cycloheptanone into methanol solution, adding hydroxylamine hydrochloride, heating to react to obtain enantholactam, adding concentrated hydrochloric acid into the obtained reaction liquid, refluxing to react, decompressing the reaction liquid, removing the solvent, cooling with dichloromethane, and crystallizing to obtain 7-aminoheptanoic acid hydrochloride. The method has the advantages of simple and convenient operation, green and environment-friendly production, higher product yield and suitability for large-scale production.

摘要：【中文】本发明属于计算机目标检测技术领域，提供了一种用于水下目标检测的检测网络的方法。两个轻量级的模块为基础构建神经网络，通过MFF与MBP模块搭建UnderwaterNet。前者加强了信息在一个模块之内的交互性与流动性，后者通过不同尺度的高斯模糊进行下采样，既加强了网络的平移不变性也产生了利于小目标检测的不同等级的模糊特征图。两者都具有轻量级与多尺度的特点，因而适合部署到水下机器人上，在保证速度的同时也能达到很高的精度，为水下目标检测任务提供了一种新的解决方案。 【EN】The invention belongs to the technical field of computer target detection, and provides a network detection method for underwater target detection. And constructing a neural network based on the two lightweight modules, and constructing an underwaterNet through the MFF and the MBP module. The former strengthens the interactivity and the mobility of information in a module, and the latter carries out down-sampling through Gaussian blur of different scales, thereby strengthening the translation invariance of the network and generating fuzzy feature maps of different levels beneficial to small target detection. Both the two have the characteristics of light weight and multiple dimensions, so that the underwater robot is suitable for being deployed on an underwater robot, the speed is ensured, meanwhile, the high precision can be achieved, and a new solution is provided for an underwater target detection task.

摘要：【中文】本发明涉及一种InDel(插入或缺失)分子标记以及采用该分子标记对黄瓜果形QTL定位的方法，该方法基于所述InDel分子标记，辅助选择构建替换片段覆盖全基因组的黄瓜染色体片段替换系，来进行黄瓜果形QTL的定位。染色体片段替换系可以将多基因调控的数量性状变成多个单基因控制的质量性状，从而能够消除背景影响，提高果形QTL定位准确性，增加QTL定位精确度。而且，InDel分子标记在进行群体筛选时，对DNA的纯度和浓度要求较低，扩增产物的稳定性强。 【EN】The invention relates to an InDel (insertion or deletion) molecular marker and a method for positioning cucumber fruit-shaped QTL by adopting the molecular marker. The chromosome fragment replacement line can change the quantitative character regulated by multiple genes into a plurality of quality characters controlled by single genes, thereby eliminating background influence, improving the positioning accuracy of fruit-shaped QTL and increasing the positioning accuracy of QTL. In addition, the InDel molecular marker has low requirements on the purity and concentration of DNA during population screening, and the stability of an amplification product is strong.