查询词典 reagent

In the seventh chapter, the reaction of sodium hydrogen selenide with thiocarbamates and dithiocarbamates in ethanol as a selenium-containing reagent with good nucleophilic and reductive property were studied.

第七章进行了硒试剂NaHSe与硫代氨基甲酸酯和二硫代氨基甲酸酯的反应研究，并提出了反应的可能机理。

The reagent molecule CH〓 that is consisted of an H atom and a CH〓 fragment which is treated as a semirigid vibrating rotor.

我们计算得到了不同初始振转态的总反应几率，积分反应截面和速率常数。

Objective This study was to provide the target antigen for the development of a Lyme disease vaccine and serodiagnosis reagent.

目的为莱姆病血清学诊断和基因工程亚单位疫苗研制提供靶抗原。

Objective This study was to provide the target antigen for the development of a Lyme disease vaccine and serodiagnosis reagent .

目的 为莱姆病血清学诊断和基因工程亚单位疫苗研制提供靶抗原。

Give out to every entry of reaction those who have substantial content is Chinese and English contrasting name, representative reaction equation and as far as possible all ready overview paper and near future are opposite till the; of representative research paper June 2008 reagent entry gives out Chinese and English contrasting full name, whole structural style and the representative paper; with preparation experiment part to every entry of skeletonize language give out complete Chinese and English contrasting name and structural style.

对反应的每个条目都给出有实质内容的中英文对照的名称，代表性的反应方程式和尽可能齐全的综述性论文及近期直到2008年6月的代表性探究论文；对试剂条目则给出中英文对照的全名，完整的结构式和附有制备实验的代表性论文；对缩略语的每个条目则分别给出完整的中英文对照的名称和结构式。

Smirch of parts in a dry cleaning methods can be taken partial treatment: Using cotton ball or soft brush dip cleaning agent and gently scrub the stain to keep siphoning off the liquid with blotting paper, and then remove smirch dip the same way with water, washed off the excess reagent.

部件污点的干洗方法可采取局部治疗：使用棉球或浸软刷清洗剂，轻轻擦洗的污渍继续吸走了吸水纸液体，然后删除污点浸了水一样，水洗关闭多余的试剂。

Meanwhile, the experiment of three factors and three levels,whose influential factors are the kind and concentration of reagent for controlling nonenzymatic browning and the soaking time,is carried out and the results show that the optimal technological condition for controlling nonenzymatic browning is to soak the material in 2% edible citrin solution for 45 min before the material is blanched.

同时以抑制剂种类、浸泡液质量分数及浸泡时间为影响因素，进行了三因素三水平试验。结果表明，将原料在灭酶前用2%的食用柠檬酸溶液浸泡45 min为抑制非酶促褐变的最佳工艺条件。

PEG400, which is poisonless, low cost with good capability of carrying sodium ion, was used as catalyst, and sodium cyanide owing to its less toxicity, stability, less amount in the reaction, was used as cyanating reagent in the reactions.

在有机卤代化合物或酯与PEG400、NaCN的用量比分别为1∶0.03和1∶1.3的条件下，获得了高收率（84％-96％）和高纯度（≥98％）的腈化物。通过几种不同溶剂下反应的对比，选择了以苯为溶剂，在酰氯与PEG400、 NaCN的用量比分别为1∶0.05和1∶1.2及反应温度为室温的条件下，合成了酰基腈化物。

The results showed that the different mass concentration of HPAM's absorbance decreases slightly when the PH value of the buffer solution is 5.0, but its reproducibility is better;In order to make the absorbance become more stable, the reaction time was identified adding proper quantities of bromine water, sodium formate and starch-cadmium iodide reagent to the solution separately; the mass concentration curve of the HPAM was draw, by means of the straight degree of the curves, the coincidence degree of the straight line about the concentration of every sampling point and so on , it shows that the mixer has good mixed effect compared with the standard curve.

如下是一些主要问题：1）文章的行文格式。文章没有按照一般科技论文的表述方式，如1是引言，2是常用方法，其实这都应该是第一部分引言里应该介绍的，引言中应扼要介绍文章的研究背景、目的，意义，采用的主要方法等。还有3是实验装置，4是实验步骤，应该这些都是第二部分，试验材料与方法。2）文章的内容。文章应主要介绍本研究的具体内容，但是本文没有，如3 实验装置部分，这个721分光光度计的原理与论文内容联系不大，根本没必要介绍，标准曲线的研究应该放在最前面等。3）文章的表述不清。如HPAM是何物，文章一直没有介绍，什么曲线的直线度、浓度与直线的重合度、什么加入溴水后的时间，应该是反应时间，总之表述不清！ 4）文章的图表。图标绘制的很难看。如图2，应该纵坐标起始点从0.25开始，这样图形就会美观很多，图3又没有纵坐标标注，还多了一个纵坐标等。5）文章的结论。文章的结论中有些严格来说不是结论，而是实验中的现象与操作注意事项。

Penicillin G sodium salt, streptomycin sulfate salt, and reagent grade sodium tetraborate were used in experiments assessing the effects of antibiotics on metal sensitivity.

青霉素G钠盐，硫酸链霉素盐，试剂级硼砂是在实验中使用的评估抗生素对金属的敏感性。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。