硫

Pure sulfur, a tasteless, odourless, brittle yellow solid, occurs in several crystalline and amorphous allotropes, including brimstone and flowers of sulfur.

纯硫是无味无嗅的淡黄色脆性固体，呈晶体状或非晶体状，如硫黄石和硫华。

Pure sulfur, a tasteless, odourless, brittle yellow solid, occurs in several crystalline and amorphous allotropes, including brimstone and flower s of sulfur.

纯硫是无味无嗅的淡黄色脆性固体，呈晶体状或非晶体状，如硫黄石和硫华。

The working principle of determination of total sulfur in coal by coulometry was introduced,the remarkable problems were discussed,and the usual malfunctions were analyzed in this paper.

介绍了库仑法测定煤中全硫的工作原理，探讨了在使用库仑测硫仪测定煤中全硫时应注意的问题，并分析了常见的一些故障。

Which are consistent to the source rocks relating to evaporite depositional environment within the lower part of Xingouzui Formation and the upper part of Shashi Formation in the study area.

对江汉盆地西南缘12个原油样品中含硫化合物分布特征的研究表明，原油中二苯并噻吩系列化合物和苯并萘并噻吩系列化合物分别占芳烃总量的4.61%~9.79%和0.27%~1.32%，与烃源岩中含硫化合物的含量一致，反映原油中含硫化合物的含量与沉积环境有关。

These could be sprayed out of special aircraft-borne injectors, or produced by burning high-sulphur aviation fuel.

这些硫颗粒要用特制的飞机喷射器来喷洒，或者燃烧高硫飞行燃料产生硫。

Optimization of the programme after the programme, the combination of study and the requirements of domestic and international examples of high-sulphur gas dehydration technology status quo, recommended high-sulphur gas zeolite moisture absorption regeneration programme as a high sulphur content of natural gas dehydration technology programmes.

对优化后的方案进行方案比较，结合研究实例的要求和国内外高含硫天然气脱水技术现状，推荐采用高含硫天然气分子筛吸附法湿气再生方案作为高含硫天然气脱水的工艺方案。

By using lysozyme, RNase A and protein disulfide isomerase as model proteins, we present a hypothesis that protein cross-linking can be accomplished in three concerted steps:(1) a change in protein conformation;(2) formation of interchain disulfide bonds; and (3) formation of interchain isopeptide cross-links.

我们以溶菌酶、核糖核酸酶A和蛋白质二硫键异构酶为模型对异肽键进行了体外详细的研究，提出了解释异肽键形成机理的假说：1蛋白质发生构象变化包括二级结构的改变；2蛋白质形成分子间二硫键：3二硫键的形成帮助蛋白质形成了分子间异肽键。

Kunming University of Science and Technology have invented a new efficient exploitation of sulphide iron ore resources, and obtained a state invention patent.

这种新方法是采用合理的工艺流程和新药剂制备高纯硫铁矿精矿，将精矿焙烧制取硫酸和优质铁精矿，铁精矿可以直接炼铁，从而达到充分利用硫铁矿中硫和铁资源的目的。

A large releases of kinetic energy for channel CH3CS++ H of least energy might result from a dissociation mechanism according to which c-C2H4S+ isomerizes to a local minimum CH3CSH+ and then dissociates through a transition state to form CH3CS++ H. On the other hand, a predicted dissociation energy 11.05 eV for c-C2H4S ?

实验中观察到环硫乙烯离子解离成CH3CS++ H的解离通道释放出大量的平均动能，并采用G3计算预测环硫乙烯离子的解离通道，推测环硫乙烯离子异构化至次稳定态CH3CSH+结构，再经过渡态结构，断裂S-H键生成C2H3S+和H，同时释放出大量的动能。

In the contaminated lard sample, 6 organic compounds have been thus identified to be the raw materials or byproducts in the production of organic tin compounds. Based on the identified contaminants, it can be postulated that the chemical structure of the organic tin compound is dibutyltin-bis-(2-isooctyl thioacetate). The method is simple and precise, and has not been reported in the local literature.Keywords Organic tin compound, Lard, SPME－GC－MS

经过摸索研究，采用固相微萃取方法富集挥发性杂质，直接注入色谱中，经色谱分离，质谱测定，确定了杂质的结构，由杂质成分推断生产有机锡所用的原料，然后判断合成路线，最后确定有机锡的结构，从有毒猪油中鉴定出2－巯基醋酸异辛酯、双（2－醋酸异辛酯）二硫、双醋酸异辛酯硫醚等6种与有机锡有关的杂质，并与相应的有机锡工业品对照，发现工业品中也含有这些杂质，与其合成过程的原料及副产物相符，从而确定有机锡化合物为二硫代醋酸异辛酯二丁基锡。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。