用量

Meanwhile the influence of the amount of catalyst alkali ethylate and absolute alcohol,the temperature and time of reaction on interesterification was studied.

利用正交试验研究了酯交换法制备卤虾油脂肪酸乙酯的工艺，分析了催化剂用量、反应温度、反应时间、无水乙醇用量等对醇解率的影响。

The time for the reaction to go to completion depends on both the amount of catalyst and acetic anhydride used.

该酰化反应进行到完全所需的时间取决于催化剂用量和乙酐用量。

The effects of the amount of catalyst, the amount of acetic anhydride, reaction time, and addition of solvents etc. on the acylation reaction were investigated.

考察了催化剂用量、乙酐用量、反应时间和溶剂的加入等因素对该酰化反应的影响。

The factors influencing on the reaction such as dosage of catalyst, molar ratio of acid to alcohol and reaction time were investigated.

考察了催化剂用量、酸醇物质的量比、带水剂用量以及反应时间等因素对产率的影响。

The synthesization technics of MPEG- MAA was studied in this paper,which is an important intermediate used for preparation of polycarboxylate superplasticizer.

本文对制备聚羧酸系减水剂的重要中间体——甲基丙烯酸聚乙二醇单甲醚酯的合成工艺进行了研究，考察了反应时间、催化剂对甲苯磺酸的用量、阻聚剂对苯二酚的用量、反应温度及甲基丙烯酸与聚乙二醇单甲醚的用量比对酯化率的影响。

Pot and field experiments were conducted to study the response to application rate of urea labeled with ~(15)N combined with compound nitrogen fertilizer synergists in the growth,yield,uptake and utilization rate of urea of maize,In pot experiment,the standard urea application rate is 120mg/perpot;in field experiment,the standard urea application rate is 157.5kg/hm~2. Maize with ~(15)N-lurea.

用15N-尿素进行盆栽和田间试验(盆栽试验尿素标准用量为120mg/盆，田间试验尿素标准用量为157.5kg/hm2)，研究了复合氮肥增效剂用量、尿素减量与复合氮肥增效剂配施对玉米生长、籽粒产量和氮素吸收利用的影响。

In this paper, use the method of the orthogonal experiment study urea and potassium hydrate pulping of bagasse technical parameters,and then through two single factor optimize experiments,at last get the optimal technical parameters for the urea and potassium hydrate pulping of bagasse: urea charge 13%, potassium hydrate charge 5%, sulphidity 6%,liquor ratio 1 : 4,maximum temperature is 150℃,time at maximum temperature is 45min.

本论文用正交实验方法研究了碳酰胺和氢氧化钾蒸煮蔗渣的工艺条件，然后通过两次单因素优化实验，最终得到了碳酰胺和氢氧化钾蒸煮蔗渣的最佳工艺条件：尿素用量13％，氢氧化钾用量5％，硫化钾用量为6％，液比1：4，最高温度150℃，保温时间45min。

By studying effects of the amount of NaOH, CS2 and dissolving water and xanthation conditions on the viscose quality, the optimal technology of viscose-making was obtained. By studying the effects of H2SO4 concentration in coagulating bath, NaOH concentration in desulfurating bath and plastifier content on the physical strength of mulch sheet, the optimal sheet forming technology was found out.

通过研究制备粘胶时NaOH用量、CS2用量、溶解用水量以及黄酸化条件对粘胶品质的影响，确定制备粘胶的最佳工艺；通过研究成膜过程中凝固浴H2SO4浓度、脱硫浴NaOH浓度、增塑剂用量等对薄膜物理强度的影响，确定了成膜的最佳工艺。

The effects of reaction temperature, reaction time, the quantity of glacial acetic acid, the quantity of hydrogen peroxide and the quantity of magnesium sulfate anhydrous on the results of experiment are investigated.

探讨了该工艺的可行性，分别考察了反应温度、反应时间、冰醋酸用量、过氧化氢用量以及无水硫酸镁用量对实验结果的影响。

The influences of type and using amount of colouring agent on the dehydrochlorination of flexible PVC were studied by Congo red method.

采用刚果红法研究了着色剂的品种和用量对软质聚氯乙烯脱氯化氢反应的影响，重点探讨了炭黑的品种和用量、二氧化钛的品种与用量、其他着色剂以及荧光增白剂OB等助剂对聚氯乙烯脱氯化氢反应的影响。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。