工艺过程
- 与 工艺过程 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Process for the manufacture of a dialkylphenylethylmalonatewhich comprises adding to a quantity of sodium which is covered with a hydrocarbon solvent boiling above 100°C, at least a chemically equivalent proportion of methyl, ethyl or a propyl alcohol, subsequently adding an approximately equivalent proportion of a dialkylcarbonate and of an alkyl phenylacetate, the alkyl groups in these two last-mentioned compounds being preferably the same as the alkyl radical of the above –mentioned lower aliphatic alcohol, heating the mixture to induce reaction and continually distilling out the alcohol formed from the reaction zone and finally causing the sodio diethyl phenylmalonate so formed to interact with an ethylating agent.
生产二烷基苯基丙二酸酯的工艺过程:这包括这包括把至少处于化学平衡的甲醇,乙醇或丙醇添加到覆盖着沸点超过一百摄氏度的碳氢化合物溶剂中,接着加入大约相同当量的二烷基碳酸酯和烷基乙酸苯酯,在刚才提到的化合物中,其烷基集团最好是和刚才提到的低级别脂肪族醇相同,然后加热反应混合物从而引导反应的进行,在反应区域通过连续蒸馏移除形成的醇类。最后使所形成的钠代二乙基苯基丙二酸酯和乙基化试剂反应。
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It was discussed that the technique of carbonization using limekiln gas and water glass.
探讨了利用工业废弃物石灰窑气和水玻璃,采用碳化法制备白炭黑的工艺过程。
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Based on the meshing theory of logarithmic spiral bevel gear, the location and the movement relationship between the tool and the machining gear in the processing technology of logarithmic spiral bevel gear are studied by establishing the mathematical model of multi-axis NC machines.
目的 针对提出的一种新型锥齿轮-对数螺旋锥齿轮,研究其加工工艺过程中刀具与加工齿轮间的位置与运动关系,以便最终实现这种新型锥齿轮的加工。
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The technological process and parameters of preparation acicular superfine metallic magnetic powders of high density recorder from waste pickle of steel products has been discussed and high quality powders have been successfully made from the waste pickle of Shougang corp.
探讨了以钢的酸洗废液为原料,制取高密度高质量磁记录介质等用针状超细金属磁粉的工艺过程与影响因素;成功地以首钢冷轧三车间的硫酸酸洗废液为原料,研制出性能优异的针状超细金属磁粉。
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The design on the main of grain storage and transportation procession and storing state of grain monitoring.
本设计主要介绍了粮食储运的工艺过程及存储状态下粮情的监测。
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The concentrations of the mixtures were measured by using chemilluminescence NOx analyzer and N2O infrared gas analyzer; the production of O2 was also monitored by an on-line mass spectrograph after the discharge.
介质阻挡放电作为一种可以在常压下产生的非平衡等离子体技术,已成功应用于臭氧的大规模工业生产及其他等离子体工艺过程中。
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During the reaction of catalytic oxidation of mesitylene by air in the gas-liquid phase to synthesize trimesic acid as well as the correlative process, with the aim of controlling the product's quality and improving its reaction yield, it's necessary to bulid a set of reliable and integral analysis methods.
在均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中,为了更好的控制产品质量和提高反应收率,建立一套可靠完善的分析方法是很有必要的。
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In the gas-liquid phase reaction of catalytic oxidation of mesitylene by air to synthesize trimesic acid and the related process,an analysis method of reaction components was proposed,which includes chromatographic analysis,mass spectral analysis,IR spectrum,atomic absorption spectrophotometer and chemical titration for the purpose of analyzing reaction groups.
针对均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中,反应产物均苯三甲酸的分析问题,提出以色谱分析、质谱分析、红外光谱分析、原子吸收光谱分析及化学滴定为主要分析手段对反应组分进行分析,重点研究并建立了相关的分析方法。
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Carbon nanotubes were discovered by electron microscopist Sumio Lijima at NEC Corp. in Japan in 1991, when he was investigating the residue deposited during a process that synthesized fullerenes (a molecular form of pure carbon noted for its cagelike structures).
碳纳管是由日本nec公司的电子显微镜专家sumiolijima在1991年发现的,当时他在研究合成富氏碳分子(由纯碳原子组成的铁丝笼状结构的分子)工艺过程中沉积的残余物。
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The mobilization production of weapon and equipment is different from others.
武器装备动员生产特色鲜明,工艺过程重组是动员生产的关键技术之一。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。