溴

In like wise, the acidic matrixes can prevent transforming from deltamethrin to its isomer.

溴氰菊酯两个异构体峰的比值在不同基质中存在显著差异，橙子、番茄、葡萄等酸性基质和甘蓝中异构体1所占比重最小，溴氰-1：溴氰-2≈1：4；而在洋葱、蒜、黄瓜中两者比例几乎达到1：1。

A new photometric method for the determination of micro-amounts of bromate is proposed based on the oxidation of isatin by bromate in HC1 medium.

在盐酸介质中，依据溴酸根离子氧化靛红褪色的原理提出了测定溴酸根离子的新方法，研究了测定的最佳条件。

The synthetic application of bromodifluoromethyl phenyl ketone was studied in this dissertation. It consists of two chapters.

中文摘要本论文对溴二氟苯乙酮在含氟化合物合成中的一些应用进行了探索，共分为两个部分：第一部分考察了溴二氟苯乙酮与羰基化合物的反应。

Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25％ NH_4 OH in a glassstoppered flask overnight.

本文报道用不含粘合剂的氧化铝薄层，以二甲苯-丙酮-无水乙醇-二乙胺(50：40：10：0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱，用改良Dragendorff试剂-Wagner试剂(1：1)显色，定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点，莨菪碱和东莨菪碱用氨甲醇洗脱，蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定；山莨菪碱用4％醋酐氯仿洗脱，蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。

The reaction of methyl bromide with methylamine to give dimethylammonium bromide is a typical SN2 reaction that shows second-order kinetics.

答：甲基溴与甲胺反应得到二甲基溴胺是一个典型的SN2反应，是动力学二级反应。

The theoretical plasma concentration versus time was calculated for all patients on the basis of the pharmacokinetic models described by Sheiner et al. Predicted effect versus time was calculated by following the pharmacokinetic-pharmacodynamic link model. The Ke0 was estimated by fitting a sigmoid cure. Group B was given the drug in a bolus of 2 mg.kg-1 and the Ke0 was calculated according to the method reported by Minto et al.

22例ASA ⅠⅡ级择期手术患者，A组(n=11)持续输注罗库溴铵0.03 mg·kg-1·min-1直至4个成串刺激降至20% 30%，B组(n=11)单次注射罗库溴铵2 mg·kg-1.A组血浆药物浓度用Sheiner等报道的药代动力学参数模拟计算，预测效应根据药代动力学-药效学关系公式换算，Ke0通过S型曲线拟合计算。B组采用Minto等提出的方法计算。

The thermodynamic function data, including total energy, enthalpy, entropy, free energy and constant volume molar heat capacity for dibenzo-furan and 135 polybrominated dibenzo-furans, were predicted by fully optimized calculation and frequency analysis at the B3LYP/6-31G* level.

在B3LYP/6-31G*水平上对二苯并呋喃和135个多溴二苯并呋喃系列化合物进行了全优化计算和振动分析，得到各分子的总能量、焓、熵、自由能和恒容热容，研究了这些参数与溴原子的取代数目及取代位置的关系。

The major salt chemical products are potassium chloride, bromide, anhydrous nitre and magnesium chloride.

中国的盐化工业产品主要有氯化钾、溴素、无水硝、氯化镁等，其中氯化钾、溴素等总产量超过50万吨。

The effect of various conditions on the reaction, such as solvent, temperature, the amount of catalyst, the concentration of hydrobromic acid, oxygen/air and so on, was studied.

在此基础上，系统地考察了溶剂、温度、催化剂用量、氢溴酸的浓度、氧气/空气等因素对芳香化合物氧化溴化反应的影响。

Inorganic: persulfate; bleaching powder concentrated; sodium metesilicate; quartz sand; sodium perborate; activated carbon; sulfate; sodium chlorate; borax; boric acid, potassium bromide, sodium bromide.

无机物：过硫酸盐、漂粉精、偏硅酸钠、硅砂、过硼酸钠、活性炭、硫酸盐、氯酸钠、硼砂、硼酸、溴化钾、溴化钠。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。