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- It can be considered a multi stage carburizing. 这一过程可以看成是一个多段渗碳过程。
- When Mg2Al-CO3-LDHs was used the anion exchange reaction did not accur. 以Mg2Al-CO3-LDHs为前体,用离子交换的方法不能制备丙烯酸插层水滑石AA-LDHs。
- The construction of ash dam in Weishui Power Plant adopts the multi stage pulverized coal ash subdam technology. 微水电厂贮灰坝的施工采用了多级粉煤灰子坝技术。
- The mathematic model of one dimensional multi stage carburation is obtained and it can describe every physical phenomenon in carburation. 该文建立了多段法渗碳的一维数学模型,用此数学模型能够清晰地描述渗碳过程中每一时段的物理行为。
- This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction. 此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
- The better technological process now is the step control of carbon potential during carburizing.It can be considered a multi stage carburation. 目前最佳渗碳工艺方法是在整个渗碳过程中对碳势进行台阶式控制,这一过程可以看成是一个多段渗碳过程。
- Raw dextran was separated and purified by multi stage ultrafiltration according to the different ranges of molecular weight. 通过采用分级超滤的方法以不同的分子质量范围对右旋糖酐粗品进行分离纯化,并分析右旋糖酐在不同分子质量范围内的分布。
- There is close relation betweenthe ATP_b-Pi exchange reaction andenergy transduction of thylakoid mem-brane. ATP_b-Pi 交换反应与类囊体膜的能量转换有密切的关系。
- Some problems concerning the design theories and optimization of multi stage decompression and micropore jet composite (MDMJC) mufflers are systematically analyzed. 对多级降压小孔喷注复合型消声器设计理论与优化方法中存在的问题进行了分析,介绍了为改善这些问题所做的一些探索工作。
- The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid. 采用催化气液同位素交换法制备了氚化雷公藤甲素,探讨了反应时间和反应介质对反应产额的影响。
- Establish the simulated calculation approach for simple sequential heat exchanger system and optimization for the multi stage sequential heat exchanger system. 建立简单序贯换热器系统的模拟计算方法,并优化设计多级序贯换热器系统。
- The alcohol producing in the exchange reaction reduces the yield of furan phenol by the further by-react... 探讨了呋喃酚环合反应质子酸催化机理。
- Its products can be categorised in sturcture to single shaft and multi stage compressor, multi shaft and multi stage compressor, single stage compressor, fans, etc. 其产品按结构形式分为单轴多级式压缩机,多轴多极式压缩机,单级式压缩机,离心式风机等;
- The Houjiangqiao Pb Zn deposit features multi source, multi stage in mineralization, which is mainly related to Devonian strata and hydrothermal activity. 后江桥铅锌矿具有多源、多阶段成矿特点,成矿主要与泥盆纪地层及热液作用有关。
- Butyl lactate was synthesized by the ester exchange reaction of D,L-lactide and n-butanol under the catalysis of sulfuric acid. 研究了D,L-丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
- Quaternary ammonium salt of chitosan was synthesized starting from chitosan, triethylamine and ethyl chloroacetate by ester exchange reaction. 以三乙胺、氯乙酸乙酯和壳聚糖等为原料,采用酯交换法合成了壳聚糖季铵盐。
- Takeshi I,Masahiro K,Akihiro P.Process for preparation of glycidyl methacrylate by catalytic ester exchange reaction:JP08239372[P].1996-09-17. 刘亚康;毛优平;金关泰.;丙烯酸缩水甘油酯的合成工艺研究[J]
- After they go through the exchange reaction of macromolecule chain,we obtain polyester-amide hot melt adhesive for textile. 研究了以聚酯胶和聚酰胺胶为原料在催化剂作用下加热共熔,通过大分子链交换反应制备织物用聚酯酰胺热熔胶的方法。
- The mathematical model of multi stage carburizing is a linear partial differential equation, and superposability is an important property of the linear partial differential equation. 多段法渗碳的数学模型是线性偏微分方程。线性偏微分方程的一个重要性质是可迭加性。
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO). 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯;产率达98.;5%25以上。