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- The influence of the main reaction conditions on the substitution degree was studied, and the mol. structure of the product was detd. 探讨了主要反应条件对产物取代度的影响,并对产物的分子结构进行了表征。
- Hydrolysis of glycosidic bond at C20 and isomerous reaction of C20 were the main reaction of dammarane type ginsenoside. 在加工过程中达玛烷型人参皂苷主要发生20位糖苷键水解和异构化。
- And the main reaction process of fluorhydric acid and mineral contained potassium such as feldspar and muscovite,in the potassiu... 对主要的反应过程用热力学的方法进行了计算和分析,确定主要反应过程可以自发的进行。
- Effects of main reaction conditions such as reaction time to the coupling reaction and the yield of squalene were studied primarily. 通过自制高效偶联试剂三三苯基膦氯化亚钴和自制金合欢基溴的还原偶联反应,成功地合成了角鲨烯。
- The analytical methods of the main reaction product and vice-product were established for the preparation of cationic etherifying agent (CHPTMAC). 对阳离子醚化剂CHPTMAC的主产物和副产物建立了分析方法。
- The experimental results as. reiorted in last literature were obtained in highly pure fused fluoride fuels with dechromisation as the main reaction. 大量文献是针对在高纯熔融氟化物燃料盐系中的试验结果,并证实一般主要发生的是选择性脱铬反应。
- The results demon-strate that the decontamination effect for main reaction products, specially radioactive Ba isotopes, is satisfactory. The chemical yield of Ra is more than 70%. 实验结果表明,该流程对主要反应产物,特别是Ba的去污较好,Ra的产额可达70%25以上。
- In this paper,the main reaction and by - reaction were studied for the synthesis of 1,4 - dioxane by cyclo-dehydration of DEG over H2SO4,H3PW12O40and ZRP-5 catalysts. 以硫酸、磷钨酸、ZRP-5分子筛为催化剂,研究了二甘醇(DEG)脱水环化的反应规律。
- Conclusion: The primary pathological processes are tissue rupture and inflammation cells infiltration in RDH, and the proliferation is the main reaction in DDH. 结论:破碎型腰椎间盘突出症是以组织坏死、基质溶解为主的病理过程。退变型腰椎间盘突出是以增生反应为主反应的病理过程。
- The advancement of oxidative and non-oxidative aromatization of methane over metallic catalysts is reviewed, and the main reaction mechanism is discussed. 综述金属催化剂催化上甲烷氧化和非氧芳构化反应进展,讨论了主要的甲烷芳构化反应的机理。
- It showed that the main reaction products including CO,CO2,NO,HONO and H2O were detected.A small amount of N2O was found only at long reaction times when the NO2 consumption was complete. 结果表明,反应的主要产物中包括CO、CO2、NO、HONO和H2O等分子,经长时间的反应,当体系中的NO2基本耗尽时,才有少量的N2O生成。
- The main reactions in the polymerizing process was proposed and the structure of copolymer was suggested. 研究提出并证实了聚合过程中的一些主要反应,并由此推断了共聚产物的结构表达式。
- In the reactor with up-flow slightly expanded bed, demetallization and desulfurization are main reactions. 试验结果表明,在上流式微膨胀床反应器内,主要发生脱金属和脱硫反应,从而起到保护下游固定床反应器的作用。
- Thermal depolymerization and thermo-oxidative degradation are the main reactions during the thermal aging of polysiloxanes. 聚硅氧烷的热老化反应主要包括热解聚和热氧化两个反应。
- The interest of such a two step process in comparison with the usual bacterial leaching is that the two main reactions can be opt... 与常用的细菌浸出比较,这样的二段工艺的益处是两个主要反应能够分别被优化。
- The result shows that for some of the reactions the yield begin decrease after a period of time,supersonic wave may promate main reactions as well as adverse reactions. 结果表明当反应一定时间后,某些反应收率开始下降。说明超声波辐射对该反应既有促进主反应的作用,又有加速逆反应的效果。
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- Crowds thronged the main square of the city. 城里的大广场上挤满了人群。
- The results indicated that the main reactions of cumene cracking were dealkylation and protolytic cracking of alkyl side chain.Benzene was mainly formed by the dealkylation reaction. 结果表明,异丙苯裂化中的主要反应为脱烷基反应和侧链质子化裂化反应,苯主要来自异丙苯的脱烷基反应;
- The whole school (was) assembled in the main hall. 全校在大礼堂集合。