查询词典 reagent

It is used in perfumery and as a reagent.

它主要被用于制造香水和化学试剂

Image processing and seihan mainly through the principles of optics for the required guangzhu pattern for fast taking pictures, in the light-blocking coating on the glass version 1.5 ~ 2 μm light-blocking Agent, depending on the design pattern for laser exposure, reagent, the laser exposure of light-blocking Agent cleaning off the left photoetching inter-Ridge.

影像处理与制版主要是通过光学原理将所需光柱图案进行快速拍照，在光阻玻璃版上涂布1.5 ～2μm 的光阻剂，依设计图案进行镭射曝光，用显影剂将未镭射曝光的光阻剂清洗掉留下光刻纹路。

The method of ammomia nitrogen determination in Water and Wastewater by Nessler's reagent photometer was improved.

氨氮普遍存在于地表水、地下水、生活污水和某些工业废水中，是判断水体污染程度的重要指标之一。

Optimum conditions for the treatment of wastewater from piperonal production with Fenton reagent were determined through experiments.

通过试验，确定了Fenton试剂法处理洋茉莉醛生产废水的最佳条件是：pH为3.0，H2O2与Fe2+的最佳摩尔比为10∶1，每200mL废水需H2O2(30%)的最佳用量为20mL。

Our synthesis is characteristic of ready availability of starting material (piperonal, ethyl oxalate, allyl bromide, ethyl 4-bromobutyrate), operationally simple reactions with cheap reagent chemicals, and atom economy.

在合成过程中，我们没有使用任何保护基，也没有将反应活性中心氮原子钝化；相反地，利用这一富电子活性中心的许多反应来构筑我们的三尖杉碱环系。

Purification with reducing reagent may avoid the forming of polar groups on the surface of CNTs.

当CNTs作为吸附剂使用时，这些基团会引起不可逆吸附。

This complex reaction was phenolic electronic substitution reaction, so reaction rate was related with the positive electricity of pro-electronic reagent, as well as the form of aromatic hydrocarbons. Rates of chlorination of phenol and 2-monochlorophenol were faster in alkaline water than that in weak acid water, so 2,4-dichlorophenol and 2,4,6-trichlorophenol formation concentrations increased with the reaction time.

该复合反应属于酚类电子取代反应，反应速率与亲电子试剂的阳电性以及芳香烃的形式有关，碱性水环境中氯取代苯酚和2-一氯酚的速率要快于在弱酸性水环境；随着pH的升高，2，4-DCP和2，4，6-TCP的生成浓度也不断增加。

Potassium permanganate is used for disinfecting, deodorizing, and bleaching and as a reagent in analysis.

高锰酸钾用于消毒、除臭、漂白，并在分析中用作试剂。

And thio-acetylamide reagent was used as precipitating agent and some other chemicals were also used in the method etc.

本方法操作具体，比色明显、定量明确，对试样的测定得到了满意的结果。

In the collision energy range from 0.01 eV to 0.5 eV ,the reaction probability, the influence of rotational excitation of the reagent HBr on probability, the integral cross section and the rotational of the product HF are calculated.

在碰撞能为0.01~0.5 eV的范围内，计算了反应几率、反应物HBr分子的转动激发对反应几率的影响、积分散射截面和产物HF分子的角度分布。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。