摘要：【中文】一种连续过渡的异色外壳注塑模具，包括下模组件、第一上模及第二上模，下模组件包括注塑下模、避位块及翘板，翘板设置在注塑下模上，避位块设置在翘板上，注塑下模上开设成型槽，第一上模上开设第一注塑槽，第二上模上开设第二注塑槽，第一上模扣设注塑下模时，第一注塑槽与成型槽共同围成成型腔体，同时，第一上模推压翘板以使避位块插入成型腔体，以预留塑胶流道，第二上模扣设注塑下模时，第二注塑槽与成型腔体连通，注入的塑胶覆盖异色部件的水口，以使异色部件外表面保持光滑，同时，第二上模推压翘板，以使避位块离开成型腔体，把预留的塑胶流道避让出来，以成型异色外壳，从而有效防止异色部件脱落，延长异色外壳的使用寿命。 【EN】A continuous transition injection mold for a heterochromatic shell comprises a lower mold component, a first upper mold and a second upper mold, wherein the lower mold component comprises an injection lower mold, a position avoiding block and a warping plate, the warping plate is arranged on the injection lower mold, the position avoiding block is arranged on the warping plate, a forming groove is formed in the injection lower mold, a first injection groove is formed in the first upper mold, a second injection groove is formed in the second upper mold, when the injection lower mold is buckled on the first upper mold, the first injection groove and the forming groove jointly enclose a forming cavity, meanwhile, the warping plate is pushed and pressed by the first upper mold to enable the position avoiding block to be inserted into the forming cavity so as to reserve a plastic runner, when the injection lower mold is buckled on the second upper mold, the second injection groove is communicated with the forming cavity, injected plastic covers a water gap of the heterochromatic component so as to enable the outer surface of the heterochromatic component to keep smooth, meanwhile, the warping plate is pushed and pressed by the second upper mold so as to enable the position avoiding block, the heterochromatic shell is formed, so that the heterochromatic component is effectively prevented from falling off, and the service life of the heterochromatic shell is prolonged.

摘要：【中文】本发明涉及一种甲烷氯化物生产废碱的处理回收系统及方法，属于废水处理及回收技术领域，该方法包括步骤：甲烷氯化物废碱水送入汽提塔经过汽提，得到了去除大部分甲烷氯化物的废碱，废碱进入三效蒸发器；蒸发后的固体废盐经过溶解罐溶解、过滤器过滤，过滤后的溶液进入氯碱车间作为原料使用，过滤后得到含NaOH、NaCl、Na₂CO₃的溶液，其中有机物质量含量小于1ppm。本发明中甲烷氯化物生产废碱水经过汽提、蒸发、溶解、过滤等步骤得到的溶液可作为氯碱工业原料使用，实现变废为宝；通过生产废碱的资源化利用，减少了废水的处理成本，克服了现有水处理投资大、对环境压力大的缺点。 【EN】The invention relates to a treatment and recovery system and a method for producing waste alkali by methane chloride, belonging to the technical field of wastewater treatment and recovery, and the method comprises the following steps: feeding the methane chloride waste alkaline water into a stripping tower for steam stripping to obtain waste alkaline from which most of methane chloride is removed, and feeding the waste alkaline into a triple-effect evaporator; dissolving the evaporated solid waste salt in a dissolving tank, filtering by using a filter, feeding the filtered solution into a chlor-alkali workshop to be used as a raw material, and filtering to obtain the waste salt containing NaOH, NaCl and Na₂CO₃The solution of (4), wherein the organic matter content is less than 1ppm by mass. In the invention, the solution obtained by the steps of steam stripping, evaporation, dissolution, filtration and the like of the waste alkaline water produced by the methane chloride can be used as a raw material of the chlor-alkali industry, thus changing waste into valuable; through resource utilization of waste alkali in production, the treatment cost of waste water is reducedThe method overcomes the defects of large investment and large environmental pressure of the existing water treatment.

摘要：【中文】本发明涉及一种甲烷氯化物生产过程中减少废碱的系统及方法，属于甲烷氯化物生产技术领域，该系统包括依次连接的反应单元、激冷单元、酸洗塔、碱洗塔、干燥单元、氯甲烷压缩单元和贮存单元；酸洗塔包括填料层和位于填料层上方的泡罩层，碱洗塔内设置有pH在线检测仪，当碱洗塔内pH小于9时排出废碱液，新鲜的碱液进入碱洗塔；酸洗塔增加泡罩塔板，吸收水从泡罩塔板的上层加入，增加了游离酸的吸收效果，减少了碱洗塔碱液的消耗；碱洗塔增加pH在线检测仪，充分利用碱液中的有效成分，在保证碱液吸收效果的基础上，减少了废碱的产生。本发明从源头上减少了高盐高COD废碱的产生，减少了废碱处理费用，降低了企业生产成本。 【EN】The invention relates to a system and a method for reducing waste alkali in the production process of methane chloride, belonging to the technical field of methane chloride production, wherein the system comprises a reaction unit, a chilling unit, an acid cleaning tower, an alkali cleaning tower, a drying unit, a chloromethane compression unit and a storage unit which are sequentially connected; the acid washing tower comprises a packing layer and a bubble cap layer positioned above the packing layer, a pH online detector is arranged in the alkaline washing tower, waste alkaline liquor is discharged when the pH value in the alkaline washing tower is less than 9, and fresh alkaline liquor enters the alkaline washing tower; the bubble cap tower plate is added in the acid washing tower, and the absorption water is added from the upper layer of the bubble cap tower plate, so that the absorption effect of free acid is improved, and the consumption of alkali liquor in the alkali washing tower is reduced; the alkaline tower is additionally provided with a pH on-line detector, so that the effective components in the alkaline liquor are fully utilized, and the generation of waste alkali is reduced on the basis of ensuring the absorption effect of the alkaline liquor. The invention reduces the generation of high-salt and high-COD waste alkali from the source, reduces the waste alkali treatment cost and reduces the production cost of enterprises.

摘要：【中文】本发明公开了一种三脚架伸缩杆，包括一级管、二级管和三极管，所述一级管靠近二极管的一端贯穿二极管且延伸至二极管的内部与二极管的内部活动连接，所述二极管的靠近三极管的一端贯穿三极管且延伸至三极管的内部与三极管的内壁活动连接，优选的，所述一级管、二极管和三极管的左右两侧均分为大头和小头，所述大头的厚度大于小头的厚度，所述小头上设置有锥度，所述大头上没有设置锥度，一级管、二极管和三极管均是碳纤维或玻璃纤维制成。本发明通过一级管、二极管、三极管、大头和小头的相互配合，不需增加连接件，直接两节就可以达到锁紧的要求，结构简单，操作也方便，给使用者带来极大的便利。 【EN】The invention discloses a tripod telescopic rod which comprises a primary tube, a diode and a triode, wherein one end of the primary tube, which is close to the diode, penetrates through the diode and extends into the diode to be movably connected with the inside of the diode, one end of the diode, which is close to the triode, penetrates through the triode and extends into the triode to be movably connected with the inner wall of the triode, preferably, the left side and the right side of the primary tube, the diode and the triode are respectively divided into a large head and a small head, the thickness of the large head is larger than that of the small head, the small head is provided with a taper, the large head is not provided with the taper, and the primary tube, the diode and the triode are all made of carbon fibers or glass fibers. The invention can directly achieve the locking requirement of two sections by mutually matching the primary tube, the diode, the triode, the big head and the small head without adding a connecting piece, has simple structure and convenient operation, and brings great convenience to users.

摘要：【中文】本发明提供一种NAND存储器及其制备方法，该NAND存储器包括：衬底；形成于衬底上方的堆栈，该堆栈包括，在垂直于衬底的纵向上，交错间隔设置的多个横向延伸栅极层和层间绝缘层；竖直延伸穿过堆栈的多个存储串；竖直延伸穿过堆栈的阵列共源极，该竖直延伸的阵列共源极在第一横向上具有特定宽度，并在第二横向上具有特定长度，而分隔多个存储串；覆盖堆栈的绝缘层；多个纵向穿过该绝缘层而连接存储串的第一触点；至少一个纵向穿过该绝缘层而与阵列共源极的上表面接触连接的第二触点，该第二触点的横截面为闭合曲线。通过减小第一触点与第二触点形状和尺寸差异，使两种触点的形成过程易于调整和控制，降低操作难度。 【EN】The invention provides a NAND memory and a preparation method thereof, wherein the NAND memory comprises: a substrate; a stack formed over the substrate, the stack including, in a longitudinal direction perpendicular to the substrate, a plurality of laterally extending gate layers and interlayer insulating layers arranged at intervals in a staggered manner; a plurality of memory strings extending vertically through the stack; an array common source extending vertically through the stack, the vertically extending array common source having a certain width in a first lateral direction and a certain length in a second lateral direction, separating the plurality of memory strings; an insulating layer covering the stack; a plurality of first contacts longitudinally penetrating the insulating layer to connect the memory strings; and at least one second contact longitudinally penetrating through the insulating layer and in contact connection with the upper surface of the array common source, wherein the cross section of the second contact is a closed curve. By reducing the shape and size difference of the first contact and the second contact, the forming process of the two contacts is easy to adjust and control, and the operation difficulty is reduced.

摘要：【中文】本实施例公开一种多屏课堂系统及显示方法，所述系统包括控制后台服务器，投屏设备、学生端设备及教师授课端设备；所述控制后台服务器分别与投屏设备、学生端设备及教师授课端设备连接；所述投屏设备，用于将投屏内容进行投屏；所述学生端设备，用于将学生课件内容进行显示；所述教师授课端设备，用于将教师课件内容进行显示；所述投屏内容、所述学生课件内容与所述教师课件内容与所述投屏设备、所述学生端设备及所述教师授课端设备分别一一对应，在所述投屏设备、所述学生端设备及所述教师授课端设备所显示的内容不完全相同。通过在投屏设备、学生端设备及教师授课端设备上显示不同的内容，方便教师理解和背课，减少老师的工作量和学习强度。 【EN】The embodiment discloses a multi-screen classroom system and a display method, wherein the system comprises a control background server, screen projection equipment, student end equipment and teacher teaching end equipment; the control background server is respectively connected with the screen projection equipment, the student end equipment and the teacher teaching end equipment; the screen projection equipment is used for projecting screen projection contents; the student end equipment is used for displaying the contents of the student courseware; the teacher teaching terminal equipment is used for displaying the courseware content of the teacher; the screen projection content, the student courseware content and the teacher courseware content correspond to the screen projection equipment, the student end equipment and the teacher teaching end equipment one by one respectively, and the contents displayed by the screen projection equipment, the student end equipment and the teacher teaching end equipment are not identical. Different contents are displayed on the screen projection equipment, the student end equipment and the teacher teaching end equipment, so that the teacher can conveniently understand and carry out lessons, and the workload and the learning intensity of the teacher are reduced.

摘要：【中文】本发明属于医药技术领域，具体地，涉及一种他达拉非原料药的生产工艺。他达拉非原料药的生产工艺包括以下步骤：A1：甲醇与D‑色氨酸发生酯化反应，得中间体Ⅰ；A2：中间体Ⅰ与胡椒醛发生缩合反应，得中间体Ⅱ；A3：中间体Ⅱ与氯乙酰氯发生酰化反应，得中间体Ⅲ；A4：中间体Ⅲ与一甲胺发生环合反应，得他达拉非原料药。本发明对反应路径进行合理选择，同时对每一个反应步骤的工艺细节进行深度优化，使每一步反应的产物都能达到非常高的纯度和收率，制得的他达拉非原料药成本低、稳定性好，提升了整个反应路径的经济性，降低了生产成本。 【EN】The invention belongs to the technical field of medicines, and particularly relates to a production process of tadalafil raw material medicines. The production process of the tadalafil raw material medicine comprises the following steps: a1: carrying out esterification reaction on methanol and D-tryptophan to obtain an intermediate I; a2: carrying out condensation reaction on the intermediate I and piperonal to obtain an intermediate II; a3: carrying out acylation reaction on the intermediate II and chloroacetyl chloride to obtain an intermediate III; a4: and (3) carrying out cyclization reaction on the intermediate III and monomethylamine to obtain the tadalafil raw material medicine. The method reasonably selects the reaction path, and deeply optimizes the process details of each reaction step, so that the product of each step can reach very high purity and yield, the prepared tadalafil raw material medicine has low cost and good stability, the economy of the whole reaction path is improved, and the production cost is reduced.

摘要：【中文】本申请公开了一种水性仿釉罩面漆，将纳米二氧化硅等无机粉料加入体系，提高漆膜强度，与基材附着力以及抗老化性能，本申请制备的水性仿釉罩面漆附着力普遍高于传统罩面漆，抗老化性能远优于传统罩面漆。产品质量稳定，生产工艺环保，且采用纳米二氧化硅等无机粉料使涂膜强度增强明显。涂抹干燥后，表面“釉质”感逼真，既美观又环保。 【EN】The application discloses waterborne imitation glaze finish coat, add inorganic powder such as nanometer silica into the system, improve film strength, with substrate adhesive force and ageing resistance, the waterborne imitation glaze finish coat adhesive force that this application prepared is generally higher than traditional finish coat, and ageing resistance is far superior to traditional finish coat. The product quality is stable, the production process is environment-friendly, and the strength of the coating film is obviously enhanced by adopting inorganic powder such as nano silicon dioxide and the like. After being smeared and dried, the enamel on the surface is vivid, beautiful and environment-friendly.

摘要：【中文】本申请公开了一种不锈钢用高硬度哑光水性涂料。具体为：a)具体为：将水性树脂28‑36份、去离子水40‑60份、成膜助剂1‑2份、硅烷偶联剂7‑15份、荷叶疏水剂4‑8份、催化剂0.5‑1份、交联剂5‑10份依次混合均匀得到A组分，将水69份、硫酸钡70份、防沉降剂1份、分散剂0.5份高速分散过筛得到B组分b)混合处理：将步骤a)所得AB组份混合高速分散0.5h得到成品。成膜工艺就是不锈钢常规表面涂膜处理，如喷涂、辊涂、烘干等。通过该方法制得的不锈钢涂料其附着力0级，硬度2H，耐污实验∆E≤1.0。与不锈钢油性涂料性能接近，能够作为油性涂料的替代产品。该涂料具有良好的防污性能，外观上哑光，无气孔，美观，制备过程清洁环保。 【EN】The application discloses a high-hardness matte water-based paint for stainless steel. The method specifically comprises the following steps: a) the method specifically comprises the following steps: uniformly mixing 28-36 parts of water-based resin, 40-60 parts of deionized water, 1-2 parts of a film-forming assistant, 7-15 parts of a silane coupling agent, 4-8 parts of a lotus leaf hydrophobing agent, 0.5-1 part of a catalyst and 5-10 parts of a cross-linking agent in sequence to obtain a component A, and dispersing and sieving 69 parts of water, 70 parts of barium sulfate, 1 part of an anti-settling agent and 0.5 part of a dispersing agent at a high speed to obtain a component B) for mixing treatment: mixing the AB component obtained in the step a) and dispersing for 0.5h at a high speed to obtain a finished product. The film forming process is the conventional surface coating treatment of the stainless steel, such as spraying, roller coating, drying and the like. The stainless steel paint prepared by the method has the adhesive force of 0 grade, the hardness of 2H and the stain resistance test Δ E of less than or equal to 1.0. The performance of the paint is close to that of the stainless steel oil paint, and the paint can be used as a substitute product of the oil paint. The paint has good antifouling performance, matte appearance, no air holes, attractive appearance and clean and environment-friendly preparation process.

摘要：【中文】本申请公开了一种水性高硬度高透明度不锈钢涂料制备方法。a)具体为：将水性树脂28‑36份、去离子水40‑60份、成膜助剂1‑2份、改性二氧化硅水浆15‑20份、烤漆催化剂0.5‑1份、交联剂5‑10份依次混合均匀；b)砂磨处理：将步骤a)所得样品放入砂磨机中砂磨1h得到成品。通过该方法制得的涂料在不锈钢表面其附着力0级，硬度2H，∆E≤1.0。与不锈钢油性涂料性能接近，能够作为油性涂料的替代产品。该涂料具有良好的防污性能，外观上高光泽，无气孔，美观，制备过程清洁环保。 【EN】The application discloses a preparation method of a water-based high-hardness high-transparency stainless steel coating. a) The method specifically comprises the following steps: uniformly mixing 28-36 parts of water-based resin, 40-60 parts of deionized water, 1-2 parts of a film-forming additive, 15-20 parts of modified silicon dioxide slurry, 0.5-1 part of a baking varnish catalyst and 5-10 parts of a cross-linking agent in sequence; b) sanding treatment: and d) placing the sample obtained in the step a) into a sand mill, and sanding for 1h to obtain a finished product. The paint prepared by the method has the adhesion force of 0 grade on the surface of the stainless steel, the hardness of 2H, and the Δ E of less than or equal to 1.0. The performance of the paint is close to that of the stainless steel oil paint, and the paint can be used as a substitute product of the oil paint. The paint has good antifouling performance, high gloss, no air holes, beautiful appearance and clean and environment-friendly preparation process.