摘要：【中文】本发明的一种中框后盖一体的3.5D复合板手机后盖的成型工艺，依次具有复合板选择、UV压花、光学电镀、印刷、成型和淋涂步骤，复合板的PMMA层厚度为0.003‑0.0045mm，PC层的厚度为0.7955‑0.9955mm，UV压花中UV胶水为耐拉伸胶水，光学电镀的电镀层为20～200nm，印刷步骤的印刷油墨为柔性油墨，成型步骤中成型出带中框结构的手机后盖；淋涂步骤时需作40‑50度倾角操作。本工艺能够直接成型出背板与中框一体的手机后盖，使整个手机后盖的颜色及表面硬度整体一致，表面平整度高，产品外观效果佳，整体圆润美观，且加工成本低。 【EN】The forming process of the 3.5D composite board mobile phone rear cover with the integrated middle frame and rear cover sequentially comprises the steps of composite board selection, UV embossing, optical electroplating, printing, forming and curtain coating, wherein the thickness of a PMMA (polymethyl methacrylate) layer of the composite board is 0.003-0.0045mm, the thickness of a PC (polycarbonate) layer is 0.7955-0.9955mm, UV glue in the UV embossing is stretch-proof glue, an electroplated layer of the optical electroplating is 20-200 nm, printing ink in the printing step is flexible ink, and the mobile phone rear cover with the middle frame structure is formed in the forming step; the dip angle operation of 40-50 degrees is needed during the curtain coating step. The process can directly form the mobile phone rear cover with the back plate and the middle frame integrated, so that the color and the surface hardness of the whole mobile phone rear cover are integrally consistent, the surface smoothness is high, the product appearance effect is good, the whole mobile phone rear cover is smooth and attractive, and the processing cost is low.

摘要：【中文】本发明提供了平面顶尖，属于顶尖技术领域。它解决了现有的顶尖适用性差、加工精度低的问题。它包括呈筒状的压套以及后端面设有连接部的本体，压套的前端面为压紧面，本体前端面设有配合部，压套套接在配合部上，压套的后端和/或本体前端设有弧面，当压套前端面受力时能使压套通过弧面进行偏摆，压套与配合部之间设有能为压套偏摆进行让位的间隙二。它具有保证加工精度、适用性广、结构可靠等优点。 【EN】The invention provides a plane center, and belongs to the technical field of centers. The problems that the existing centre is poor in applicability and low in machining precision are solved. The pressing sleeve comprises a cylindrical pressing sleeve body, a connecting portion is arranged on the rear end face of the pressing sleeve body, the front end face of the pressing sleeve body is a pressing face, a matching portion is arranged on the front end face of the body, the pressing sleeve is sleeved on the matching portion, a cambered surface is arranged at the rear end of the pressing sleeve body and/or the front end of the body, the pressing sleeve can deflect through the cambered surface when the front end face of the pressing sleeve is stressed, and a second gap capable of yielding for the deflection of the pressing sleeve is arranged between the pressing sleeve body and the matching portion. The device has the advantages of ensuring the processing precision, along with wide applicability, reliable structure and the like.

摘要：【中文】本发明公开了一种构建海绵城市的装配式挡土墙，涉及绿化景观技术领域，解决了挡土墙制作和吊装时难度高，内部易磨损，蓄水容量小的问题，包括预埋底座；所述预埋底座的顶部固定安装有两块一号挡土块；两块二号挡土块的顶部均固定安装有一块三号挡土块。在制作本装置时，只需要通过专用的模具将预埋底座、一号挡土块、二号挡土块、三号挡土块和四号挡土块分别进行浇筑，在需要挡土的位置组装本装置时，先将蓄水池固定在地底，然后将预埋底座固定在蓄水池上方并使用混凝土固定，再将一号挡土块、二号挡土块、三号挡土块和四号挡土块依次向上放置，然后即可组成一个完整的挡土墙，因为本装置是组装式结构，所以制作和吊装时的难度将会大大降低。 【EN】The invention discloses an assembled retaining wall for constructing a sponge city, relates to the technical field of greening landscapes, solves the problems of high difficulty, easy abrasion in the interior and small water storage capacity of the retaining wall during manufacturing and hoisting, and comprises a pre-buried base; two first soil retaining blocks are fixedly arranged at the top of the embedded base; the top of two No. two fender soil blocks all fixed mounting have a No. three fender soil block. When making this device, only need through dedicated mould with pre-buried base, No. one keep off the native block, No. two keep off the native block, No. three keep off native block and No. four and pour respectively, when this device of position equipment that needs kept off the soil, fix the cistern at the bottom of the ground earlier, then fix pre-buried base in the cistern top and use the concrete fixed, No. one keep off the native block again, No. two keep off the native block, No. three keep off native block and No. four keep off the native block and upwards place in proper order, then can constitute a complete retaining wall, because this device is assembled structure, so the degree of difficulty when preparation and hoist and mount will greatly reduced.

摘要：【中文】一种适应于空间核热推进系统的热控装置，包括低温绝热防护结构、低温贮氢罐、第一换热器、空间发电模块、辐射散热器和低温制冷机。低温绝热防护结构包覆于低温贮氢罐外围；低温贮氢罐内的工质氢一路直接进入核热反应堆，另一路对核热发动机喷管冷却后再进入核热反应堆；核热反应堆堆芯内的热量传递给第一换热器；第一换热器将堆芯余热传入空间发电模块；空间发电模块利用一部分热量进行发电，剩余热量传输给辐射散热器进行空间辐射散热；空间发电模块发电的电能控制低温制冷机制冷，保证低温贮氢罐内工质维持低温贮存状态。本发明既具有可靠性高(无运动部件)、传热散热效果好的优点，又具有结构简单、综合热管理的特点，具有极大的应用前景。 【EN】A thermal control device suitable for a space nuclear thermal propulsion system comprises a low-temperature heat insulation protection structure, a low-temperature hydrogen storage tank, a first heat exchanger, a space power generation module, a radiation radiator and a low-temperature refrigerator. The low-temperature heat-insulation protection structure is coated on the periphery of the low-temperature hydrogen storage tank; one path of working medium hydrogen in the low-temperature hydrogen storage tank directly enters the nuclear heat reactor, and the other path of working medium hydrogen cools a spray pipe of a nuclear heat engine and then enters the nuclear heat reactor; transferring heat in the core of the nuclear thermal reactor to a first heat exchanger; the first heat exchanger transmits the waste heat of the reactor core into the space power generation module; the space power generation module generates power by using a part of heat, and the rest heat is transmitted to the radiation radiator for space radiation heat dissipation; the electric energy generated by the space power generation module controls the low-temperature refrigerator to refrigerate, and the working medium in the low-temperature hydrogen storage tank is ensured to maintain a low-temperature storage state. The invention has the advantages of high reliability (no moving parts) and good heat transfer and dissipation effects, has the characteristics of simple structure and comprehensive heat management, and has great application prospect.