摘要：【中文】本发明公开了一种防止近视的握笔姿势矫正用器具，所述器具长度方向上的第一侧相比于第二侧在厚度上高出0.5cm‑2cm。本发明的有益效果为防止握笔过于靠近笔尖，有效矫正握笔姿势。 【EN】The invention discloses a pen-holding posture correction appliance for preventing myopia, wherein a first side of the appliance in the length direction is higher than a second side in thickness by 0.5cm-2 cm. The pen-holding posture correcting device has the advantages that the pen-holding posture is prevented from being too close to the pen point, and the pen-holding posture is effectively corrected.

摘要：【中文】本发明涉及制冷技术领域，提供制冷系统和制冷设备。制冷系统，包括：第一制冷支路，数量为多条，分别对多个制冷需求末端进行制冷，且各条所述第一制冷支路分别设置有储液器；第二制冷支路，对所述制冷需求末端进行制冷备份，所有所述第一制冷支路的所述储液器至少连通一条所述第二制冷支路。本发明的制冷系统，虽然没有设置集液器，但是第一制冷支路的储液器至少连通一条第二制冷支路，进而不管哪条第一制冷支路出现故障，都至少有一条第二制冷支路可以代替出现故障的第一制冷支路，保证对所有制冷需求末端的正常制冷。 【EN】The invention relates to the technical field of refrigeration, and provides a refrigeration system and refrigeration equipment. A refrigeration system, comprising: the number of the first refrigeration branches is multiple, the first refrigeration branches refrigerate the tail ends of multiple refrigeration demands respectively, and each first refrigeration branch is provided with a liquid storage device respectively; and the second refrigeration branch is used for refrigerating and backing up the refrigeration requirement tail end, and the liquid reservoirs of all the first refrigeration branches are communicated with at least one second refrigeration branch. According to the refrigeration system, although the liquid collector is not arranged, the liquid storage device of the first refrigeration branch is at least communicated with one second refrigeration branch, and at least one second refrigeration branch can replace the failed first refrigeration branch no matter which first refrigeration branch fails, so that normal refrigeration of all refrigeration requirement tail ends is guaranteed.

摘要：【中文】本发明涉及制冷技术领域，提供制冷系统的储液组件及制冷系统。制冷系统的储液组件，包括：储液容器；充注容器；第一管道，连通储液容器和充注容器；第二管道，第一端形成有充注口，第二端连通充注容器；第三管道，第一端形成有放散口，第二端连通充注容器；在第一管道、第二管道和第三管道中，至少第一管道设置有阀门。该制冷系统的储液组件，充注容器通过第一管道连通储液容器，进而通过控制第一管道上阀门的开闭，控制储液容器和充注容器之间的连通或断开。当需要向制冷系统注入冷媒的时候，即便制冷系统处于运行状态，也可以通过断开第一管道，先将冷媒注入充注容器当中，避免冷媒注入过程当中因制冷回路压力过高导致无法继续注入冷媒的问题。 【EN】The invention relates to the technical field of refrigeration, and provides a liquid storage assembly of a refrigeration system and the refrigeration system. A liquid storage assembly for a refrigeration system, comprising: a reservoir; filling the container; the first pipeline is communicated with the liquid storage container and the filling container; the first end of the second pipeline is provided with a filling opening, and the second end of the second pipeline is communicated with the filling container; a third pipeline, wherein a first end is provided with a dispersion port, and a second end is communicated with the filling container; at least the first pipe is provided with a valve among the first pipe, the second pipe, and the third pipe. This refrigerating system's stock solution subassembly fills and annotates the container and passes through first pipeline intercommunication stock solution container, and then through the switching of controlling valve on the first pipeline, controls the intercommunication or the disconnection between stock solution container and the filling container. When a refrigerant is required to be injected into the refrigerating system, even if the refrigerating system is in an operating state, the refrigerant can be injected into the filling container firstly by disconnecting the first pipeline, and the problem that the refrigerant cannot be injected continuously due to overhigh pressure of a refrigerating circuit in the refrigerant injection process is avoided.

摘要：【中文】本发明涉及制冷技术领域，提供一种自然冷却系统，用于直接或间接制冷系统，包括并联的第一制冷支路和第二制冷支路，第一制冷支路包括压缩机、第一冷凝器、节流元件，第二制冷支路上设置有第二冷凝器，第一制冷支路和第二制冷支路都连接到低压储液器上，低压储液器直接连接制冷需求末端或通过换热器间接对制冷需求末端提供制冷。第一制冷支路和第二制冷支路在外气湿球温度满足一定条件时可以同时开启，此时第一制冷支路的压缩机降低转速，并由第二制冷回路实现部分自然冷却，从而延长了自然冷却的利用时间，实现节能。 【EN】The invention relates to the technical field of refrigeration, and provides a natural cooling system which is used for a direct or indirect refrigeration system and comprises a first refrigeration branch and a second refrigeration branch which are connected in parallel, wherein the first refrigeration branch comprises a compressor, a first condenser and a throttling element, the second refrigeration branch is provided with a second condenser, the first refrigeration branch and the second refrigeration branch are both connected to a low-pressure liquid accumulator, and the low-pressure liquid accumulator is directly connected with a refrigeration requirement tail end or indirectly provides refrigeration for the refrigeration requirement tail end through a heat exchanger. The first refrigeration branch and the second refrigeration branch can be simultaneously opened when the temperature of the external air wet bulb meets a certain condition, at the moment, the rotating speed of the compressor of the first refrigeration branch is reduced, and partial natural cooling is realized by the second refrigeration loop, so that the utilization time of the natural cooling is prolonged, and the energy conservation is realized.

摘要：【中文】本发明涉及制冷技术领域，提供制冷系统，用于冷却末端冷却器的送风，包括沿着冷媒流通方向上依次连接的压缩机、蒸发式冷凝器、第一节流元件和低压储液器，低压储液器连通末端冷却器，并将低压储液器当中的冷媒通入末端冷却器当中。低压储液器保证了压缩机吸气不进液，避免了压缩机液击发生损害，同时避免了第一节流元件采用过热度控制，增加过热损失。另外冷凝端采用了蒸发式冷凝器，通过水循环蒸发带走热量使冷媒冷凝，较常规水冷制冷方式和风冷制冷方式都不同幅度降低了冷凝温度。末端采用直接蒸发式，通过冷媒的相变吸热带走热量。该系统降低蒸发冷凝温度差，缩小压缩比，提高了热力学完善度和压缩机的能效系数，从而实现大幅度节能效果。 【EN】The invention relates to the technical field of refrigeration, and provides a refrigeration system for cooling air supply of a terminal cooler. The low-pressure liquid storage device ensures that the compressor does not suck liquid, avoids damage caused by liquid impact of the compressor, and simultaneously avoids the first throttling element from adopting superheat degree control to increase overheating loss. In addition, the condensation end adopts an evaporative condenser, heat is taken away through water circulation evaporation to condense the refrigerant, and the condensation temperature is reduced in a different range compared with a conventional water-cooling refrigeration mode and an air-cooling refrigeration mode. The tail end adopts a direct evaporation type, and heat is taken away through phase change heat absorption of a refrigerant. The system reduces the temperature difference of evaporation and condensation, reduces the compression ratio, and improves the thermodynamic perfection and the energy efficiency coefficient of the compressor, thereby realizing the effect of greatly saving energy.

摘要：【中文】本发明提供一种双组分加成型有机硅导热胶及其制备方法。该加成型有机硅导热胶，包括A组份、B组份，A组份包括以下重量份数组份：乙烯基硅油15～50份、抗沉降剂0.1～2份、改性硅微粉44～78份、辅助导热填料0.5～6份、铂金催化剂0.001～0.1份，B组份包括以下重量份数组份：乙烯基硅油12～35份、含氢硅油3～15份、抗沉降剂0.1～2份、改性硅微粉44～78份、辅助导热填料0.5～6份、抑制剂0.001～0.1份。本发明采用含有非活性有机官能团的有机硅烷偶联剂和羟基乙烯基硅油制备了结构改性调节剂，通过制备的结构改性调节剂对硅微粉改性，提高了硅微粉与有机硅胶的相容性，解决了硅微粉在有机硅胶中的分散性和稳定性，在提高有机硅胶导热性的同时，降低了导热胶的密度，制备具有高导热性、低密度、稳定性好的有机硅导热胶。 【EN】The invention provides a bi-component addition type organic silicon heat-conducting adhesive and a preparation method thereof. The addition type organic silicon heat-conducting adhesive comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 15-50 parts of vinyl silicone oil, 0.1-2 parts of anti-settling agent, 44-78 parts of modified silicon micropowder, 0.5-6 parts of auxiliary heat-conducting filler and 0.001-0.1 part of platinum catalyst, wherein the component B comprises the following components in parts by weight: 12-35 parts of vinyl silicone oil, 3-15 parts of hydrogen-containing silicone oil, 0.1-2 parts of anti-settling agent, 44-78 parts of modified silicon micro powder, 0.5-6 parts of auxiliary heat-conducting filler and 0.001-0.1 part of inhibitor. According to the invention, the organic silane coupling agent containing the inactive organic functional group and the hydroxyl vinyl silicone oil are adopted to prepare the structural modification regulator, the prepared structural modification regulator is used for modifying the silica powder, the compatibility of the silica powder and the organic silica gel is improved, the dispersibility and stability of the silica powder in the organic silica gel are solved, the thermal conductivity of the organic silica gel is improved, the density of the heat-conducting adhesive is reduced, and the organic silicon heat-conducting adhesive with high thermal conductivity, low density and good stability is prepared.

摘要：【中文】本发明涉及一种工程测量的风险源定位系统，包括安装在壳体上的摄像头主体，所述摄像头主体包括半球型摄像头和底座，所述底座固定在壳体上，所述半球型摄像头固定在底座上，所述底座上设有对半球型摄像头进行清洁的刷子，所述刷子呈弧形，刷子和底座转动连接，底座上设有用于驱动刷子转动的动力机构。通过动力机构使刷子在底座转动，刷子转动一圈将半球型摄像头的镜面上的灰尘进行清扫，简单快捷，实现自动对半球型摄像头进行清洁。 【EN】The invention relates to a risk source positioning system for engineering measurement, which comprises a camera main body arranged on a shell, wherein the camera main body comprises a hemispherical camera and a base, the base is fixed on the shell, the hemispherical camera is fixed on the base, a brush for cleaning the hemispherical camera is arranged on the base, the brush is arc-shaped and is rotationally connected with the base, and a power mechanism for driving the brush to rotate is arranged on the base. Make the brush rotate at the base through power unit, the brush rotates the dust of round on with the mirror surface of hemisphere type camera and cleans, and is simple swift, realizes that half-and-half spherical camera cleans automatically.

摘要：【中文】本公开实施例公开了一种提高运营商效用的用户关联和边缘计算卸载方法，包括以下步骤：获取移动节点与周围多个计算节点组成的匹配对集合；基于所述匹配对集合、所述计算节点的带宽资源以及计算资源，确定带宽资源分配策略b、计算资源分配策略f^°以及卸载决策λ，分别构建用户偏好列表以及基站偏好列表；移动节点建立通信连接时，从所述用户偏好列表中选择计算节点发送任务卸载请求，所述计算节点接收到所述任务卸载请求后，在连接数已达上限时，若所述移动节点匹配到所述基站偏好列表，则将未在列表中的移动节点断开连接，并建立与所述移动节点的通信连接。该技术方案既保障了移动节点的服务质量，又实现了边缘计算网络中运营商潜在利益最大化。 【EN】The embodiment of the disclosure discloses a user association and edge computing unloading method for improving utility of an operator, which comprises the following steps: acquiring a matching pair set formed by a mobile node and a plurality of surrounding computing nodes; determining a bandwidth resource allocation strategy b and a computing resource allocation strategy f based on the matching pair set, the bandwidth resources of the computing nodes and the computing resources^°Unloading decision lambda, respectively constructing a user preference list and a base station preference list; and when the mobile node establishes communication connection, selecting a computing node from the user preference list to send a task unloading request, and after receiving the task unloading request, if the connection number reaches an upper limit, and the mobile node is matched with the base station preference list, disconnecting the mobile node which is not in the list, and establishing communication connection with the mobile node. The technical scheme not only ensures the service quality of the mobile node, but also realizesThe potential benefits of the operator in the edge computing network are maximized.

摘要：【中文】本发明提供一种滋养细胞及其制备方法和在NK细胞扩增中的应用。一种滋养细胞的制备方法，包括以下步骤：（1）构建MBIL21的序列及构建表达MBIL21的显示绿色荧光的慢病毒质粒；（2）构建用T2A连接的CD86和CD137L的序列和带有嘌呤霉素抗性的慢病毒质粒；（3）将步骤（2）获得的慢病毒质粒进行包装，提取慢病毒感染k562细胞，逐渐增加嘌呤抗性的浓度，筛选出具有抗性的k562‑CD86‑CD137L细胞，并采用低浓度嘌呤霉素维持培养；（4）将步骤（1）获得的慢病毒质粒进行包装，提取慢病毒感染步骤（3）得到的k562‑CD86‑CD137L细胞，用流式分选仪分选出具有绿色荧光标志的细胞，k562‑CD86‑CD137L‑MBIL21细胞，即为该滋养细胞。本发明从外周血单个核细胞中直接扩增NK细胞，便于操作，为研究原代NK细胞提供了基础。 【EN】The invention provides a trophoblast, a preparation method thereof and application thereof in NK cell amplification. A method for preparing trophoblasts comprises the following steps: (1) constructing the sequence of MBIL21 and constructing a lentivirus plasmid expressing MBIL21 and showing green fluorescence; (2) constructing sequences of CD86 and CD137L connected by T2A and a lentiviral plasmid with puromycin resistance; (3) packaging the lentivirus plasmid obtained in the step (2), extracting lentivirus infected k562 cells, gradually increasing the concentration of purine resistance, screening resistant k562-CD86-CD137L cells, and maintaining culture by adopting low-concentration puromycin; (4) packaging the lentivirus plasmid obtained in the step (1), extracting k562-CD86-CD137L cells obtained in the step (3) after lentivirus infection, and sorting out cells with green fluorescent marks, namely k562-CD86-CD137L-MBIL21 cells by using a flow sorter, namely the trophoblast. The invention directly amplifies the NK cells from the peripheral blood mononuclear cells, is convenient to operate and provides a foundation for researching primary NK cells.

摘要：【中文】本发明公开了一种节水园林演示模型建设方法，包括S1选择具有给排水及供电条件的区域，根据地形、空间确定模型尺寸大小；S2模型展示区域铺设防水层；S3防水处理后在模型展示区域设置闭合可存水的透明展示区；S4模型容器内填充土壤；S5模型容器地面上铺设透水路面；S6模型容器上设置落雨管。本发明模型建设方法造价低廉，比类似模型造价都要低；完全、逼真地展示节水园林各项功能；不仅可做展示模型，还可做教学模型。结合模型给学生生动讲解节水园林工作原理，及设计、施工时应注意事项，将抽象的东西具体化，可讲的具体，学起来容易。 【EN】The invention discloses a water-saving garden demonstration model construction method, which comprises the steps of S1 selecting an area with water supply and drainage and power supply conditions, and determining the size of a model according to the terrain and space; paving a waterproof layer in the S2 model display area; s3, setting a closed transparent display area capable of storing water in the model display area after waterproof treatment; filling soil in the S4 model container; s5 paving a permeable pavement on the ground of the model container; and a rain pipe is arranged on the S6 model container. The model construction method has low cost, and the cost is lower than that of similar models; various functions of the water-saving garden are completely and vividly displayed; not only can be used as a display model, but also can be used as a teaching model. The water-saving garden principle is vividly explained for students by combining the model, and items to be noticed during design and construction are specified, so that the students can learn the water-saving garden principle more easily.