This paper presents one's opinion for reduction course in alkali sulphide reduce nitro compound.

In today's chemistry class, the teacher introduced the chemical components of hydrogen sulphide.

今天化学课上, 老师介绍了硫化氢的化学成分.

...hydrogen sulphide.

硫化氢

Of steel, iron, aluminium, copper and rubber pieces together, sulphide.

各种钢 、 铁 、 铝 、 铜件与橡胶粘合 、 硫化.

Verified test with a copper sulphide ore was carried in laboratory scale.

利用某矿山的铜硫矿石进行了实验室验证试验.

Hydrogen sulphide: Rotten egg gas.

硫化氢(味): 臭鸡蛋味.

Crude coke oven gas contains hydrogen sulphide which is produced from sulphur in the coal.

未处理的焦炉气中含有硫化氢气体,它是由煤中的硫产生的.

Silver in the form of silver sulphide was recovered from waste fixing solution with sodium sulphide.

用硫化钠从废定影液中以硫化银的形式回收银,高温灼烧硫化银得纯银,再制备成硝酸银.

It generates hydrogen sulphide and removes the hair.

它产生硫化氢,并移除头发.

A mathematic model for oxidation leaching of sulphide ore developed.

建立了常压预浸合金硫化镍矿的氧化浸出数学模型,并进行了验证试验.

Apricot processing technology of antibrowning without sulphite was studied.

研究杏的无硫护色工艺.

Paper so made is very strong but cannot be bleached as white as sulphite paper.

用它造成的纸,十分结实,但可以漂白的程度,不及亚硫酸盐纸.

To introduce the function, safety and determination of sulfur dioxide and sulphite in foods.

介绍二氧化硫及亚硫酸盐在食品中的作用 、 安全性及检测方法.

The residues of sulphites in products differ owing to the different processing method and adding amounts.

制品中亚硫酸盐的残留量因加工方式和添加量而异.

All these demonstrate that sulphites have become one of major contaminations in aquatic products.

综合检测结果表明,亚硫酸盐污染已经成为水产加工品的主要污染因素之一.

Contents of the isomers in sodium metanitrobenzene sulphonate salt were analyzed by chemical methods.

用化学法分析间硝基苯磺酸钠盐中异构体的含量.

Experiment on the transesterification of jatropha curcas oil with p-toluene sulphonic acid as catalyst was studied.

实验研究了麻疯树油在对 甲苯 磺酸催化剂的作用下与甲醇发生转酯化反应生成脂肪酸甲酯(生物柴油)的情况.

...measures to reduce emissions of sulphur dioxide.

二氧化硫的减排措施

Sulphur is also used to sterilize equipment.

硫也可用来给器材消毒。

This medicine smacks of sulphur.

这种药带有一点硫磺气味.

Bacteria that live in the mouth break down proteins in food, releasing sulphur compounds.

口腔里的细菌破坏了食物中的蛋白质, 并且释放硫磺化合物出来.