用量

The effects of catalyst, catalyst promoter, ratio and amount of catalyst and catalyst promoter, temperature, reaction time and pressure on the selectivity and yield of benzaldehyde have been investigated.

重点考察了催化剂种类、助催化剂种类、催化剂和助催化剂的配比和用量、反应温度、反应时间和反应压强等因素对苯甲醛的选择性和收率的影响。

The effects of catalyst amount, mole ratio of sodium benzoate and benzyl chloride, reaction time on the esterification rate were studied.

考察了催化剂用量、釜残液与氯化苄的物质的量的比和反应时间对收率的影响。

Benzoin condensation reaction of benzaldehyde using simple imidazolium based ionic liquids as catalyst has been successfully achieved. The reaction factors such as solvent, base and ionic liquids have been studied in detail.

成功地实现了简单咪唑基离子液体对苯甲醛自缩合成苯偶姻的催化反应，以及详细探讨了溶剂、碱、离子液体种类及用量等各种影响因素。

Based on analyzing the generation mechanism and quality characteristics of reclaimed acid from benzol refining and comparing varies kinds of purification methods, the operation easily, the technical process simple extraction method is used to purify the reclaimed acid and the dosage of the extraction agent and extraction power are studied in detail.

对精苯再生酸的生成机理、质量特性进行了分析，通过比较各种再生酸净化方法的优缺点，选用操作简便、工艺简单的再生酸净化方法——萃取法对再生酸进行处理试验，并对萃取剂的用量、萃取能力等进行了详细的研究。

Gas carrying with wash oil after the benzol washer,disease of wash oil,leaking oil of oil water separator etc.

在某种程度上，洗油单位用量最能说明焦炉煤气洗涤工序的技术操作水平，它是直接影响洗苯效率和操作费用的重要因素。

Benzonitrile was selectively hydrogenated into benzylamine under mild conditions over activated amorphous nickel aluminium alloy catalyst which was prepared by rapidly quenching method.

由铜鼓快速淬冷法制备的非晶态NiAl合金催化剂经活化后用于催化苯甲腈加氢制苄胺的反应，考察了溶剂种类、苯甲腈初始浓度、催化剂用量、反应温度及反应压力等因素的影响，并测定了该催化加氢反应的表观活化能。

The influence of reaction time, temperature, the acidity strength and amount of IL, on benzophenone yield were investigated.

考察了反应时间、温度、离子液体用量及Lewis酸性调变对反应的影响。

Effects of reaction temperature, oxygen concentration, catalyst dosage and reaction time on oxidation of benzyl alcohol were investigated.

考察了反应温度、氧浓度、催化剂用量以及反应时间对苯甲醇氧化的影响。

Before the beton curdle , to being even with trowel, besprinkle the colorful stamp material on the surface of beton by the rule with 2-3 dosage.to make level and velvet with trowel for time after time.

混凝土初凝前，以镘刀将混凝土镘平，以撒布法将彩色印花料按规定用量平均分二至三次均匀撒布于混凝土面层，每次均匀以专用镘刀进行镘平、镘光工作。

Fiber coupler is one of the most important devices among fused taperfiber devices. Its usage ranks second among the optical passive devices.It is used for separating or coupling light. At.present, it is fabricated withfused biconical taper technology at large.

熔锥型光纤器件中最为典型的器件是光纤耦合器，其用量在光无源器件中居第二位，其功能是使传输中的光信号在特殊结构的熔锥区发生耦合，实现分光。

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％。