sulphur 四级考研

anthropogenic emissions of sulphur dioxide.

人类活动引起氧化硫废气。

The pungent, choking smell of sulphur filled the air.

空气中弥鼻呛人硫磺气味。

the sulphur in the coal reacts with the limestone during combustion.

煤炭中硫磺燃烧时与石灰石起化学反应。

Examples: Lithia, saline, and sulphur waters.

例如：有氧化锂、镁盐、硫磺等物质矿泉水。

coal-fired power stations continue to emit large quantities of sulphur dioxide.

燃煤火力发电站继续排放出大氧化硫。

The effect of sulphuring, vacuum treatment and soaking on the quality of candied apples was studied.

本文研究了苹果脯生产中护色、抽空处理、浸渍等关键工序对产品质影响。

Vulcanisation is the method or process of treating crude rubber with sulphur and subjecting it to intense heat.

他们发明可以令制造胶制品成本大大减低，同时亦能够大生产品质可靠胶类制品，当中亦包括安全套。

Optimization and modeling of boric acid extraction from colemanite in water saturated with carbon dioxide and sulphur dioxide gases.

在氧化碳及氧化硫饱和水溶液中从硬硼钙石提取硼酸最优化方案研究。

While the reduction of the initial oxidized products on pyrite surface such as polysulphide and free sulphur can improve its hydrophilicity.

同时，黄铁矿表面初始氧化产物如单质硫和多硫化物被还原，亲水性增强。

Controled the humidity of drying room at abaut 40% can notably cut dowm the time of drying process, browning , and sulphur surplusage of products.

这就使得实现果脯低糖低硫成为可能。

This paper introduces the technical condition of electrorefine high-nickel and high-sulphur copper anode and analyzes the problem and the reason in the practise.

介绍了高镍高硫铜阳极电解技术条件,分析了电解过程中产生问题及其原因,提出了解决对策。

High polymer catalyst polyorganosiloxane propyl-sulphur alcohol platinum complex is synthesized , when it is used in the hydrosilylation,the reaction conditions are mild,the total yield is 65%～90%.

合成了一种高分子催化剂聚硅氧烷丙硫醇铂配合物,其用于氢硅化反应时,反应条件温和,反应总转化率可达65%～90%。

It reports the synthsis of a new low toxic organic sulphur germicide pyruvoyl - hydrazono - 1, 3 - ditholane.The stracture of objective compound was identified and determined.

报道了一种新型、低毒有机硫杀菌剂——丙酮酸缩肼叉-1，3-噻茂烷合成，并对目标化合物结构进行了分析。