Export refund rates for calcium hydrochloride, hypochlorites and sulphates of zinc would be raised to 5 %.

Many sulphates have a tendency to form double salts.

很多硫酸盐有形成复盐的趋势.

In addition , the removal effectiveness of Sulphide, Tannin and Chromiun activated sludge system is also examined.

并对生物处理去除制革污水中的硫化物 、 铬、单宁等有毒物质的效果也作了研究.

New technology of once sintering sulphide selenide cadmium base red glaze is researched.

研究了一种一次烧成镉硒红釉的新工艺.

In the nature, the nickel mainly exists by sulphide ore and oxide ore.

在自然界中, 镍主要以硫化镍矿和氧化镍矿状态存在.

And the sulphide mineral deposits lie directly on the sea floor.

而硫化物矿藏直接坐落在海床上.

In this paper the heat balance of pressure leaching for zinc sulphide concentrate is calculated.

笔者对硫化锌精矿加压浸出过程的热平衡进行了计算.

It is very significant the work of and extinguishing the spontaneous combustion of sulphide ores.

该项研究结果对疏化矿矿井内火灾的防治具有重要的指导意义.

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

本文对硫化碱还原硝基化合物的反应历程写法提出了自己的见解.

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.