查询词典 reaction coil

On reaction rate and yield as evaluating standard for different methods, the potassium ferricyanide oxidation and H2O2 oxidation for octreotide were found to be superior to other methods in less reaction time and high oxidation yield.

从氧化速率及氧化效果的方面考虑，发现铁氰化钾氧化法和H_2O_2氧化法对还原型奥曲肽的氧化效果更优。

The catalytic action of mercury on the colour reaction between potassium ferrocyanide and 4, 7-diphenyl-1, 10-phenanthrolihe has been studied, The addition of thiourea will further increase the sensitivity of the reaction.

本文研究了汞催化亚铁氰化钾与4，7-二苯基-1，10-菲啰啉显色反应体系，硫脲的加入显著提高了体系的灵敏度，摩尔吸光系数ε＝4。

The results of experiment show that the Si-V coupled reaction equilibrium can be transferred towards the direction of high temperature and the speed of VO reduction reaction is accelerated sharply by the use of plasma,The technology of plasma can be used to melt ferrovanadium and similar ferroalloys.

试验证明，在等离子条件下，Si－V耦合反应的平衡能向高温方向移动，VO还原速度急剧提高，存在着用碳还原法代替金属热还原法冶炼钒铁和类似的铁合金的可能性。

According to the tentative reaction equation from single molecular reaction theory and the second and the frist Fike's laws,the expression of the weight percentage and the diffusing thickness,was derived.

基于单分子反应理论假设反应模型，结合菲克第二、第一定律，得到质量分数与扩散厚度的关系式，以此研究了范围内液态锡与铁反应过程中锡的扩散厚度。

Especially of fissionable material able to sustain a chain reaction in such a manner that the rate of reaction increases.

能够以反应速度不断增加的方式继续连锁反应。

The influence of catalyst dosage,reaction time,reaction temperature and the time of taking off the low weight molecular compound on viscosity and flashing point was studied.

考察了催化剂用量、反应温度、反应时间和脱低沸物时间等因素对产品粘度和闪点的影响。

The reaction time, reaction temperature and catalyst influencing on esterification were investigated, and the acid value, flashing point and other properties were determined.

考察了反应时间、反应温度、催化剂等反应条件对酯化反应的影响，并对增塑剂的酸值、闪点及其他主要性能指标进行了测定，改进了酯化反应工艺条件，讨论了样品色泽、酸值及闪点的影响因素。

Teflubenzuron was synthesized from 2,4-difluoronitrobenzene and 2,6-dichlobenil as starting reagent through six-step reaction with the yield of 75.3%.3,5-Dichloro-2,4-difluoroaniline was synthesized by chlorination,reduction reaction from 2,4-difluoronitrobenzene,the yield was 84.5%;2,6-difluorobenzamide with the yield of 87.7% was synthesized by fluoridation and hydrolysis from 2,6-dichlobenil.

以2，4-二氟硝基苯和2，6-二氯苯腈为起始原料，经过6步反应合成伏虫隆，总收率为75.3%。以2，4-二氟硝基苯为原料，经过氯化、还原反应合成3，5-二氯-2，4-二氟苯胺，产率为84.5%；以2，6-二氯苯腈为原料，经过氟化和水解，制得2，6-二氟苯甲酰胺，产率为87.7%；将Ⅱ与二碳酸酯酰化，合成2，6-二氟苯甲酰异氰酸酯，产率为91.3%；Ⅲ与Ⅰ加成，得到杀虫剂伏虫隆，产率为95%。

Reaction conditions are studied, and the result shows that it is better to adopt mercuric oxide or mercuric fluoride as fluorination catalyst with reaction temperature -20~-10℃.

结果表明，采用氧化汞或氟化汞作氟化催化剂、氟化氢作溶剂较好，适宜的反应温度为－20~-10℃，较长的反应时间(48 h)和增加氟化氢和催化剂的量有利于氟化。2-氯－5-三氯甲基吡啶的转化率和选择率均可达到97%以上。

When MPa was given to the rats and mice model by the method of ip and ig,MPa was found with antiinflammatory action at different extent in the delayed footpad reaction with formaldehyde in rats and in the reaction of pinnae tumefaction with xylene in mice.

河蚌多糖对小鼠灌胃给药，能显著增强腹腔巨噬细胞吞噬能力；对大鼠和小鼠ip和ig给予MPa时，分别对甲醛引起的大鼠足跖反应和二甲苯引起的小鼠耳廓肿胀，具有不同程度的抗炎作用

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。