用量

The effects of molar ratio of benzyl alcohol to acetic acid,reaction time,and the amount of catalyst and its reusability on esterification yield were discussed.

结果表明，乙酸苄酯最适宜的合成工艺条件为：酸醇摩尔比2∶1、催化剂用量3.5%、带水剂用量40%、反应时间6 h。

The results showed that the optimal conditions for synthesis of benzyl acetate were: the molar ratio of acetic acid to benzyl alcohol was 2∶1,the amount of the water carrier was 40%,the amount of the catalyst was 3.5%,and reaction time was 6 h.

结果表明，乙酸苄酯最适宜的合成工艺条件为：酸醇摩尔比2∶1、催化剂用量3.5%、带水剂用量40%、反应时间6 h。

Effects of reaction temperature, reaction time, the amount of alkali, benzyl chloride and quaternary ammonium on grating rate of benzylated natural bamboo fiber have been discussed.

以接枝率为考察目标用正交试验探索了反应温度，碱用量，反应时间，氯化苄及助剂季铵盐的用量5个因素对天然竹纤维苯甲基化改性的影响，确定了最佳反应条件。

Dosage is not to had been jumped over more more when using, must right amount, because cassia bark, clove, fennel, ginger and peppery wait makings, although they belong to natural dressing, but if dosage is excessive, the secondary action with be had particular likewise and even noxiousness and lure denaturation, when be being used so, answer with " peace is little not much " advisable.

使用时并非用量越多越好，一定要适量，因为桂皮。丁香。茴香。生姜以及胡椒等料，它们虽然属于天然调味品，但假如用量过度，同样具有一定的副作用乃至毒性和诱变性，所以使用时应以&宁少勿多&为宜。

But the glass-transition temperature of the polymer decreased to 96℃. When the cuing agent, PN was replaced by diphenyldiaminomethane, the V-0 rating could be achieved with the least content (3.68 wt% P and 0.83 wt% N) and Tg was increased to 139℃. The cyanate ester- containing PN was synthesized by phosphorus-containing PN and cyanogen bromide.

为了减少磷的用量，将PN改成含有氮的硬化剂(Diphenyl diaminomethane， DDM)，利用DDM中的氮和含磷PN的磷产生氮磷共乘阻燃效果，可使磷用量下降至3.68%，氮含量0.83%即可达V-0级，而Tg也上升至139.83℃。

The results suggested that the reaction temperature, the ratio of oil to water, the amount of ethyl cellulose as dispersant, initial monomers composition, the drop manner and the amount of initiator, the stirring speed, the pH of the buffer and the elution process have great influence on the morphology such as diameter of the hydrogel beads.

研究结果表明，采用反相悬浮聚合法，以丙烯酰胺和N-乙烯基吡咯烷酮为共聚单体，N，N'-亚甲基双丙烯酰胺为交联剂，牛血清白蛋白为模板，可以制备BSA印迹共聚物微球；反应温度、水油比、乙基纤维素分散剂用量、初始共聚单体配比、引发剂用量和加入方式、搅拌速度、水相pH值以及后续洗脱条件等均对粒径等微球结构和形态产生明显影响。

objective to investigate the curative effect of plasma exchangeto treat patients of organophosphrous pesticide.methods combine pe and routine treatment to cure30patients of organophosphrous pesticide,and compare the results with that of31patients of routine treatment.results the former group use less atˉropin and shorter hospitalization with higher cure rate and lower death rate.conclusion combined pe and routine treatment of treat patients of organophosphrous poison can decrease the dose of atropin,shorten the length of stay,raise the cure rate and ower mortality.so pe is an effective way for patients oforganophosphrous pesticide.

目的 探讨血浆置换治疗重症有机磷农药中毒的疗效。方法应用pe配合常规疗法治疗30例的疗效与31例对照组常规疗法作比较分析。结果 pe配合常规疗法较常规疗法治疗重症有机磷农药中毒，前者阿托品用量少，住院时间短，治愈率高，死亡率低。结论 pe配合常规疗法治疗重症农药中毒，可减少阿托品用量，缩短住院时间，提高治愈率，降低死亡率，因此pe不失为治疗重症农药中毒的一种有效的抢救措施。

The paper relying on project practice of the express highway from Taiyuan to Changzhi of Shanxi Province, according to demanding of "Technical Specifications for Construction of Highway Asphait Pavements ", combining with own region climate characteristic and concrete design, and construction request, it has carried out SBS modified studying on shell-90# asphalt, so drawing a conclusion: 1. Having studied the quantity of SBS modifier"s effect on the temperature sensibility, the high temperature stability, the low temperature resistance to cracking , elasticity and the durability of asphalt ,meanwhile, having studied the quantity of SBS modifier"s effect on the water stability, the high temperature stability , the low temperature resistance to cracking of asphalt mixture, having compared SBS modified bitumens various function. As a result ,when the amount of SBS added is 5%, every function is comparatively even.

本论文依托山西省太—长高速公路建设的工程实践，按照《沥青路面施工技术规范》的要求，结合本地区的气候特点和具体设计、施工要求，对壳牌90#沥青进行了SBS改性研究，得到如下结论：(1)研究了SBS改性剂用量对沥青的温度敏感性、高温稳定性、低温抗裂性、弹性及耐久性的影响，同时研究了改性剂用量对沥青混合料的高温稳定性、低温抗裂性和水稳定性的影响，比较了SBS改性沥青的各项性能，结果表明当SBS掺加量为5%时，各性能较为均衡。

Latest researches in the catalysts for synthesis of carbamate by ammonolysis of dimethyl carbonate;2. Progress in the catalysts for synthesis of carbamates by ammonolysis of dimethyl carbonate;3.4,4′-Methylene diphenyl carbamatewas synthesized by ammonolysis of dimethyl carbonate, a substitute of phosgene, and 4,4′-diaminodiphenyl methane with anhydrous zinc acetate as catalyst.

用碳酸二甲酯代替光气，以4，4′-二氨基二苯基甲烷为原料，在无水醋酸锌催化剂的作用下，经胺解反应合成了4，4′-二苯甲烷二氨基甲酸甲酯；测定了MDC的熔点；采用傅里叶变换红外光谱和氢核磁共振对产品结构进行了表征；考察了反应温度、DMC用量、反应压力、反应时间、催化剂用量对MDC收率的影响。

The mixed sugarcane juice was decoloured by steel slag in order to find a new decolouring agent. The effects of steel slag size and dosage, disposing temperature and time on the results of decolouration were discussed,and the optimum conditions were obtained as the following:steel slag size of 100 mesh and dosage 3g, disposing temperature 45℃ and time 5min.

摘 要：为了研究开发新型的蔗汁脱色剂，利用钢渣对甘蔗糖厂混合汁进行了脱色处理，研究了钢渣细度、钢渣用量、处理温度、处理时间等因素对蔗汁脱色效果的影响，并确定了钢渣用于蔗汁脱色的最佳工艺条件为：钢渣细度100目，钢渣用量3g，处理温度45℃，处理时间5min。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷