摘要：【中文】本发明提供了一种截图处理方法、装置及存储介质；方法包括：在图形界面中呈现包含有至少一个锚点的第一截图框；响应于针对第一锚点的位置调整指令，调整所述第一锚点的位置，并同步调整所述图形界面中呈现的所述第一截图框的形状；当第一锚点处于所述位置调整指令所指示的目标位置时，在所述图形界面中呈现对应所述目标位置的第二截图框，所述第二截图框的形状不同于所述第一截图框的形状；响应于基于所述图形界面触发的截图指令，对所述第二截图框中的内容进行截图处理，得到截图图像。通过本发明，能够根据用户需求对截图框的形状进行编辑，得到用户所需形状的截图图像。 【EN】The invention provides a screenshot processing method, a screenshot processing device and a storage medium; the method comprises the following steps: presenting a first cut-frame containing at least one anchor point in the graphical interface; in response to a position adjusting instruction for a first anchor point, adjusting the position of the first anchor point and synchronously adjusting the shape of the first cut-frame presented in the graphical interface; when the first anchor point is at the target position indicated by the position adjusting instruction, presenting a second cut-off frame corresponding to the target position in the graphical interface, wherein the shape of the second cut-off frame is different from that of the first cut-off frame; and responding to a screenshot instruction triggered based on the graphical interface, and performing screenshot processing on the content in the second screenshot frame to obtain a screenshot image. According to the invention, the shape of the screenshot frame can be edited according to the requirement of the user, and the screenshot image of the shape required by the user can be obtained.

摘要：【中文】本发明提供了一种截图处理方法、装置及存储介质；方法包括：在图形界面中呈现第一截图框及形状选择功能项；响应于针对所述形状选择功能项的点击操作，将呈现的所述第一截图框变化为对应目标形状的第二截图框，所述第二截图框的形状不同于所述第一截图框的形状；响应于基于所述图形界面触发的截图指令，对所述第二截图框中的内容进行截图处理，得到截图图像。通过本发明，能够基于用户需求对截图框进行形状变换，得到用户所需形状的截图图像。 【EN】The invention provides a screenshot processing method, a screenshot processing device and a storage medium; the method comprises the following steps: presenting a first cut-off frame and a shape selection function item in a graphical interface; changing the presented first cut-off frame into a second cut-off frame corresponding to a target shape in response to a click operation for the shape selection function item, the second cut-off frame having a shape different from that of the first cut-off frame; and responding to a screenshot instruction triggered based on the graphical interface, and performing screenshot processing on the content in the second screenshot frame to obtain a screenshot image. According to the invention, the shape of the screenshot frame can be transformed based on the user requirement, so that the screenshot image of the shape required by the user can be obtained.

摘要：【中文】本发明提供一种深井泵螺纹连接管拆卸专用套件，它包括一个支撑架（3）和两个夹持架，支撑架（3）用于安放在井口地面，两个夹持架分别用于夹持相邻的两段螺纹连接管，其中，位于下方的夹持架安放在支撑架（3）上；所述夹持架包括连板（1）和两个夹臂（2），两个夹臂（2）的一端分别与连板（1）铰接，另一端通过可拆卸连接件锁紧，每个夹臂（2）包括有把持杆（21）和内表面为弧形的夹持件（22），两个夹持件（22）相对，夹持件（22）的内表面设置有摩擦纹路。其具有结构简单、占用空间小和使用方便的优点。 【EN】The invention provides a special assembly for disassembling a threaded connecting pipe of a deep well pump, which comprises a support frame (3) and two clamping frames, wherein the support frame (3) is used for being placed on the ground of a well head, the two clamping frames are respectively used for clamping two adjacent sections of threaded connecting pipes, and the clamping frame positioned below is placed on the support frame (3); the clamping frame comprises a connecting plate (1) and two clamping arms (2), one ends of the two clamping arms (2) are hinged to the connecting plate (1) respectively, the other ends of the two clamping arms are locked through detachable connecting pieces, each clamping arm (2) comprises a clamping rod (21) and a clamping piece (22) with an inner surface being arc-shaped, the two clamping pieces (22) are opposite, and friction grains are arranged on the inner surface of each clamping piece (22). It has the advantages of simple structure, small occupied space and convenient use.

摘要：【中文】本发明公开了一种基于图注意力网络的SAR目标小样本识别方法，主要解决现有技术在训练数据缺乏情况下识别率较差的问题，其方案是：选取包含雷达目标的SAR图像，抑制其相干斑噪声，并将降噪后的SAR图像划分为有标签的数据和无标签的数据；利用降噪后的图像训练自编码器，得到全部SAR图像的特征向量；在有少量标签数据的前提下，利用向量相似性得到初始邻接矩阵；设置图注意力网络，并利用所有特征向量迭代训练图注意力网络，直至该网络的误差函数收敛，输出最终预测的节点标签矩阵，实现无标签数据的识别。本发明能利用少量已知类别的SAR目标对其余大量未知目标的类别进行预测，且预测准确率高，可用于小样本情况下的雷达目标识别。 【EN】The invention discloses a SAR target small sample identification method based on a graph attention network, which mainly solves the problem of poor identification rate under the condition of lack of training data in the prior art, and has the scheme that: selecting an SAR image containing a radar target, inhibiting speckle noise of the SAR image, and dividing the SAR image subjected to noise reduction into labeled data and unlabeled data; training a self-encoder by using the denoised image to obtain the characteristic vectors of all SAR images; on the premise of a small amount of label data, an initial adjacency matrix is obtained by utilizing vector similarity; and setting a graph attention network, training the graph attention network by utilizing all eigenvectors in an iterative manner until an error function of the network is converged, and outputting a final predicted node label matrix to realize the identification of label-free data. The method can predict the categories of a large number of other unknown targets by using a small number of SAR targets with known categories, has high prediction accuracy, and can be used for radar target identification under the condition of small samples.

摘要：【中文】本发明公开了一种基于图时空网络的雷达动目标多帧联合检测方法，主要解决现有技术对单通道系统动目标检测虚警率较高的问题。其方案是：获取子孔径距离多普勒谱；构造子残差网络和子图时空网络，并用其构成用于动目标检测的神经网络模型；用子残差网络做区域目标检测，输出初步检测概率图并计算交叉熵损失；用子图时空网络作时空特征提取与融合，输出中间帧动目标的最终检测概率图并计算均方误差；将交叉熵损失与均方误差之和作为总代价函数，训练神经网络至总代价函数收敛得到训练好的神经网络，将测试数据输入训练好的神经网络，对其输出的阈值判断，抑制非极大值后得到中间帧的动目标检测结果。本发明降低了虚警率，可实现可靠的动目标检测。 【EN】The invention discloses a radar moving target multi-frame joint detection method based on a graph space-time network, which mainly solves the problem that the false alarm rate of single-channel system moving target detection in the prior art is high. The scheme is as follows: acquiring a sub-aperture range Doppler spectrum; constructing a sub residual error network and a sub-graph space-time network, and forming a neural network model for moving target detection by using the sub residual error network and the sub-graph space-time network; performing regional target detection by using a sub-residual network, outputting a primary detection probability map and calculating cross entropy loss; extracting and fusing space-time characteristics by using a sub-graph space-time network, outputting a final detection probability graph of the intermediate frame moving target and calculating a mean square error; and taking the sum of cross entropy loss and mean square error as a total cost function, training the neural network until the total cost function converges to obtain the trained neural network, inputting test data into the trained neural network, judging the output threshold value of the neural network, and inhibiting a non-maximum value to obtain a moving target detection result of the intermediate frame. The invention reduces the false alarm rate and can realize reliable moving target detection.

摘要：【中文】本发明涉及一种三维有序多孔氮掺杂石墨烯复合结构的制备方法，包括(1)在多巴胺(DA)的聚合过程中，通过多巴胺的氨基与氧化石墨烯(GO)上的含氧基团间的相互作用，使聚多巴胺(PDA)包覆在氧化石墨烯纳米片上，同时氧化石墨烯被PDA还原为石墨烯(rGO)，得到PDA‑rGO；(2)在高温惰性气氛下，PDA分解，生成的氮原子掺杂进入rGO的石墨结构中，得到三维网状结构的有序多孔氮掺杂石墨稀(3D‑OPNG)。本发明可以分别通过控制多巴胺的浓度和退火温度，来调控氮的掺杂量和掺杂类型。该方法绿色环保，简便易行，对设备无特殊要求，成本低，易于推广使用。所制备的三维有序多孔氮掺杂石墨烯在燃料电池和电解池等领域具有广阔的应用前景。 【EN】The invention relates to a preparation method of a three-dimensional ordered porous nitrogen-doped graphene composite structure, which comprises the following steps of (1) coating poly-dopamine (PDA) on a graphene oxide nano-sheet through the interaction between amino groups of dopamine and oxygen-containing groups on the Graphene Oxide (GO) in the polymerization process of the Dopamine (DA), and reducing the graphene oxide into graphene (rGO) by the PDA to obtain PDA-rGO; (2) under the high-temperature inert atmosphere, PDA is decomposed, and the generated nitrogen atoms are doped into the graphite structure of rGO to obtain the ordered porous nitrogen-doped graphene (3D-OPNG) with the three-dimensional network structure. The method can regulate and control the doping amount and the doping type of nitrogen by controlling the concentration of dopamine and the annealing temperature respectively. The method is green and environment-friendly, simple and easy to implement, has no special requirements on equipment, is low in cost and is easy to popularize and use. The prepared three-dimensional ordered porous nitrogen-doped graphene has wide application prospect in the fields of fuel cells, electrolytic cells and the like.

摘要：【中文】本发明提供了一种微量非贵金属修饰的铂基催化剂及其制备方法，该催化剂可用作低温燃料电池催化剂。制备方法是以高粘度醇如乙二醇、聚乙二醇、丙三醇等为溶剂和稳定剂，水合肼、四丁基硼氢化物、柠檬酸、抗坏血酸等强还原剂还原铂和非贵金属前驱体，并结合酸刻蚀处理得到含有微量非贵金属和铂壳结构的担载型超细铂基合金纳米粒子。本发明采用的制备方法简单有效，有望实现批量化生产。此外，基于所得催化剂的独特结构特征，包括超小的催化剂粒径和均匀的粒径分布、微量稳定化的非贵金属修饰及数层Pt壳结构，其对燃料电池阴极氧还原反应具有优异的催化活性和循环稳定性，能有效降低铂的用量，在低温燃料电池中具有潜在的应用前景。 【EN】The invention provides a trace non-noble metal modified platinum-based catalyst and a preparation method thereof. The preparation method takes high-viscosity alcohol such as ethylene glycol, polyethylene glycol, glycerol and the like as a solvent and a stabilizer, reduces platinum and non-noble metal precursors by using hydrazine hydrate, tetrabutyl borohydride, citric acid, ascorbic acid and other strong reducing agents, and combines acid etching treatment to obtain the supported superfine platinum-based alloy nanoparticles containing trace non-noble metals and a platinum shell structure. The preparation method adopted by the invention is simple and effective, and is expected to realize batch production. In addition, based on the unique structural characteristics of the obtained catalyst, including the ultra-small catalyst particle size, uniform particle size distribution, micro-stabilized non-noble metal modification and a multi-layer Pt shell structure, the catalyst has excellent catalytic activity and cycle stability for the cathode oxygen reduction reaction of the fuel cell, can effectively reduce the consumption of platinum, and has potential application prospects in low-temperature fuel cells.

摘要：【中文】本发明公开了一种医药级硫酸亚铁的工业化生产方法，包括以下步骤：1）向反应罐中加入一定量的纯化水，在搅拌状态下，加入食品级硫酸亚铁，然后加入硫酸，加热至40‑60℃，使食品级硫酸亚铁全部溶解；2）温度升高至70‑80℃，加入还原铁粉或硫酸，以调节溶液pH至0.5‑1.0，搅拌1‑2小时；3）步骤2）得到的料液进行钛棒过滤，滤料在10‑20℃进行结晶，硫酸亚铁结晶析出，再进行固液分离；4）固液分离后得到的晶体干燥，最后经磁棒吸附，得到医药级原料药硫酸亚铁。该方法生产操作可行、简便，得到的硫酸亚铁杂质含量低，产品纯度高，符合中国药典2015版的要求，可作为补铁药品的医药原料。 【EN】The invention discloses an industrial production method of pharmaceutical-grade ferrous sulfate, which comprises the following steps: 1) adding a certain amount of purified water into a reaction tank, adding food-grade ferrous sulfate under the stirring state, then adding sulfuric acid, and heating to 40-60 ℃ to completely dissolve the food-grade ferrous sulfate; 2) raising the temperature to 70-80 ℃, adding reduced iron powder or sulfuric acid to adjust the pH value of the solution to 0.5-1.0, and stirring for 1-2 hours; 3) carrying out titanium rod filtration on the feed liquid obtained in the step 2), crystallizing a filter material at 10-20 ℃, separating out ferrous sulfate crystals, and then carrying out solid-liquid separation; 4) drying the crystal obtained after solid-liquid separation, and finally adsorbing by a magnetic bar to obtain the pharmaceutical raw material drug ferrous sulfate. The method has the advantages of feasible and simple production operation, low content of impurities in the obtained ferrous sulfate, high product purity, accordance with the requirements of Chinese pharmacopoeia 2015 edition, and can be used as a medical raw material of iron supplement medicines.

摘要：【中文】本发明公开了一种动静组合搅拌系统，包括搅拌器，还包括与所述搅拌器的搅拌轴平行设置的多个静态搅拌桨，多个所述静态搅拌桨围绕搅拌轴设置，所述搅拌轴的底部安装有搅拌桨叶。另外，本发明还公开了采用该动静组合搅拌系统进行铬铁矿液相氧化制备铬盐的工艺。本发明提出了一条铬铁矿液相氧化法制备铬盐的新工艺路线，创新性地解决了铬铁矿浸出过程的固液分离、高碱介质中铬盐的分离，以及中间产物转化为系列铬盐的关键工艺问题，具有很大的工业应用前景。 【EN】The invention discloses a dynamic and static combined stirring system, which comprises a stirrer and a plurality of static stirring paddles arranged in parallel with a stirring shaft of the stirrer, wherein the plurality of static stirring paddles are arranged around the stirring shaft, and stirring blades are arranged at the bottom of the stirring shaft. In addition, the invention also discloses a process for preparing chromium salt by performing liquid-phase oxidation on chromite by adopting the dynamic and static combined stirring system. The invention provides a new process route for preparing chromium salt by a chromite liquid-phase oxidation method, innovatively solves the key process problems of solid-liquid separation in the chromite leaching process, separation of chromium salt in a high-alkali medium and conversion of an intermediate product into a series of chromium salt, and has great industrial application prospect.

摘要：【中文】本发明公开了一种水下养殖平台，属于海洋工程设备技术领域，通过外壳，所述外壳内部具有一容置空间；物流通道，所述物流通道设置在所述容置空间内部靠近顶部位置处，且所述物流通道的上端通过柔性连接装置与工作船相连通；饲料舱，所述饲料舱设置在所述物流通道的外部四周；养殖区，所述养殖区设置在所述容置空间内的中部位置处；发电区，所述发电区在所述养殖区的外侧呈环状布置，且通过管系与所述养殖区相连，为所述养殖区提供养殖用水和能源动力；监控装置，所述监控装置通过多个支路与所述养殖区连接，通过传感设备控制养殖水体参数，从而达到了提高渔业养殖质量，缩短养殖周期，进一步提升海洋空间的经济价值的技术效果。 【EN】The invention discloses an underwater culture platform, which belongs to the technical field of ocean engineering equipment, and comprises a shell, wherein an accommodating space is formed in the shell; the logistics channel is arranged in the accommodating space and close to the top, and the upper end of the logistics channel is communicated with the work ship through a flexible connecting device; a feed compartment disposed about an exterior of the logistics pathway; the culture area is arranged at the middle position in the accommodating space; the power generation area is annularly arranged outside the culture area and is connected with the culture area through a pipe system, and culture water and energy power are provided for the culture area; monitoring device, monitoring device through a plurality of branches with the breed district is connected, through sensing equipment control aquaculture water body parameter to reach and improve fishery breed quality, shortened the breed cycle, further promoted the technical effect of ocean space's economic value.