三硫化物

This paper studied the catalytic transformation performances of hydrocarbon model compounds (such as n-Hexane,cyclohexane,1-Hexene) and sulfur-containing model compounds (such as thiophene,3-methylthiophene and benzothiophene) on ZSM-5 catalysts.

以正己烷、环己烷、1-己烯3种烃类和噻吩、3-甲基噻吩和苯并噻吩三种硫化物为模型化合物，考察了烃及含硫模型化合物在ZSM-5分子筛催化剂上的催化转化性能。

The metallogenic series in time can be divided into three metallogenic pe riods (cassiterite silicate period, cassiterite sulfide period and base metal sulfidr period ) and six metallogenic stages.

该成矿系列时间递变可分为三个成矿期(锡石硅酸盐成矿期、锡石硫化物成矿期和贱金属硫化物成矿期)和六个成矿阶段。

The main cobaltiferous mineral states are: cobaltiferous ferruginous sulphide, oxide, carbonate, sulphate, clay mineral and silicate.

大横路钴矿床矿石中的钴为多相多态存在，主要的含钴矿物相有含铁的硫化物、氧化物、碳酸盐、硫酸盐、粘土矿物和硅酸盐，其中粘土矿物吸附态的钴约占矿石总钴量的三分之一，这一赋存状态的钴，用通常的选矿方法难以选取，是造成该钴矿床以往钴回收率低的主要原因之一。

In this study,diallyl sulfides in garlic powder were identified via the introduction of Ag induced-ionization.

烯丙基硫化物由于弱极性不电离，本实验利用Ag+柱后诱导电离对大蒜粉剂中的含硫化合物进行质谱定性，并以二烯丙基三硫醚为参比，对各种二烯丙基含硫化合物进行定量测定。

A catalogue should be kept by all mineral collectors, and I believe the best and simplest method is a notebook starting with number one, and as specimens are added to the collection, number two, three, four, etc. From this list any number of categories can be worked out to keep a record of the species separate, such as copper, silver, gold, or to be more scientific, all sulphides, sulphates, etc. The purpose of the collection should be kept in mind when setting up the categories.

目录应当保存的所有矿物收藏家，我相信，最好和最简单的方法是一个笔记本从第一，并作为标本，加上收集，有多少二，三，四等，从这个名单上任何数量的类可以工作，以保持创纪录的物种分开的，如铜，银，金，或以更加科学，所有金属硫化物，硫酸盐等，收集的目的，应该铭刻在脑海里时，设立分类。

Relative retentions of 12 S-compounds on 4 different liquid phases were given.

给出了十二种硫化物在沙鱼烷、苯二甲酸二壬酯、磷酸三甲苯酯及亚氨基二丙腈四种柱子上的相对保留值。

A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper.

气相色谱技术是测试该类物质的实用技术，从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法，并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。

A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper. Contents

气相色谱技术是测试该类物质的实用技术，从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法，并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。

After preliminary study, it is found that the main factors which control the hydrocarbon and mercury anomaly patterns to form upon metallic ore deposits have four: a.

经初步研究表明，金属矿床上方形成各类烃汞异常模式的主要决定因素有四个：一是烃汞运移的通道；二是成矿期的热差效应；三是金属硫化物的氧化作用：四是地温差异。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。