用量

The influence of each condition on the reaction speed and yield was studied, and the optimal conditions were: the ratio of the amount of substance of aromatic amine and heptafluoro-isopropyl iodine was 1:1.1~1.5, the amount of substance of sodium dithionite, sodium bicarbonate, aniline compounds were respectively 1.1~1.3, the amount of substance of phase transfer catalyst TBAB and aniline compounds was 0.05~0.1, the concentration of aniline compound was 0.5~1.0 mol/L, reaction temperature was 10~20 ℃, and the solvent was aether.

最佳结果为：芳胺与七氟异丙基碘的物质的量比1：1.1~1.5，连二亚硫酸钠、碳酸氢钠与苯胺的物质的量分别为1.1~1.3，相转移催化剂四丁基溴化铵与苯胺的物质的量比在0.05~0.1，溶剂总用量使苯胺浓度在0.5~1.0 mol/L；反应温度10~20℃；溶剂采用乙醚。取代基供电子性越强，反应时间越短，产率越高；氨基的对位优先反应，氨基的邻位较难发生反应；且七氟异丙基总是优先取代在芳环电子云密度较高的位置上。

The orthogonal test of removing protein with pawpaw proteinase analysed by difference demonstrates: the sequence of the ponderance affecting doffing protein from high to low is the treating temperature, enzyme quantity, the treating time and the pH value.

经木瓜蛋白酶正交试验极差分析，影响因素从大到小排列顺序依次为：温度、酶量、处理时间、 pH 值，最佳处理条件为温度50℃、酶用量为2%、酶解2h 、 pH 为6.0，又脱去剩余蛋白的80.2%，蛋白质浓度降到0.4mg/mL 。

We should reduce the dosage of water.

* 我们应该减少水的用量。

We should reduce dosage of the water.

* 我们应该减少水的用量。

We should cut down the dosage of water.

* 我们应该减少水的用量。

We should decrease the dosage of the water.

* 我们应该减少水的用量。

The effects of reaction temperature ,reaction time and dosage of catalyst on the oxidation reaction were examined.

考察了反应温度、反应时间和催化剂用量对氧化反应的影响，找到适宜的氧化反应条件。

In the friction material of different dosage.

在摩擦材料中不同的配方用量不同。

Note the use and dosage of both...

用法和用量说明上都有的。。。

The dosage used in this study was 200 mg per day in divided doses

在研究中每天的总用量为200毫克。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。