查询词典 sulfur

Sodium thiosulfate and carbon disulfide were used as sulfur sources in water and absolute alcohol systems, respectively.

在水溶液体系和乙醇溶液体系中，于常温常压下不加入任何催化剂，用γ射线辐照技术可以成功制备出纳米ZnS晶体，其中硫代硫酸钠和二硫化碳分别为上述两体系的硫源。

Sulfur method replaced by acetic anhydride method for chloroacetic production is the trends in domestic.

指出在国内用醋酐法代替硫磺法生产氯乙酸的必然趋势。

This article describes the production status, and discusses the strongpoint and shortcoming of using differente catalyst, sulfur and acetic anhydride .

对比两种催化剂的实际生产情况，阐述用硫磺以及用醋酐的优缺点。

The sulfur removal process of calcium carbide waste water is a chemical reaction between sulfur dioxide and sodium hydroxide.

电石废水脱硫过程是二氧化硫与氢氧化钠发生化学反应生成亚硫酸钠。

Basing on experimental study, the article analyses the process of calcination and desulfuration reaction and builds a mathematical model of calcium-based materials (limestone, shell and their mixture), which will provide theoretical basis and practical guidance for improved performance of the normal sulfur sorbent and the choice of new sulfur sorbent.

然而传统的燃煤固硫剂石灰石，因钙转化率低而使该技术的推广应用受到限制，在实验研究的基础上，对钙基材料—石灰石和贝壳用于燃煤的煅烧固硫反应过程进行数学建模与分析，以便为改善常规固硫剂的性能，选择新型固硫剂提供理论依据和实用指导。

The average contents of available sulfur in soil and sulfur in tobacco leaf from tobacco-rice continuous cropping pattern were 39.06 mg/kg and 0.968%,and 30.42 mg/kg and 0.704%for single cropping in dry land respectively.

烟叶硫含量仅有30%在0.20～0.70%正常范围内，70%烟叶硫含量超标，尤其是浏阳和宁乡植烟区的烟叶硫含量超过了1.00%。

In additon,dope sensitization also cooperated with sulfur,gold,sulfur plus gold sensitization in PTG materials,which further improved the relative sensitivity of PTG materials.

为了解决这个问题，人们首先想到将传统卤化银成像材料中的硫、金增感等化学增感技术直接移植到PTG材料中。

Studies have shown: The smeltery of Zhuzhou has a long way to go compared with famous zinc enterprises of foreign countries in the sulfur dioxide , gas of the greenhouse and heavy metal discharged.Zhuzhou smeltery should reduce the sulfur dioxide discharging density , raise the energy utilization ratio as the focal point of cleaner production and pollution control.

研究发现：株冶在二氧化硫、温室气体及重金属排放上，与国外著名锌企业差距明显，株冶应以浸出渣处理工序的低浓度二氧化硫排放与能源利用作为进一步清洁生产与污染治理的重点。

Absolute ethanol and a mixed solution of ethanol and benzene with the volume ratio of 1:1 are used as the solvents, and carbon disulfide and sulfur powders as the sulfur ions source, respectively.

分别以无水乙醇及体积比为1：1的无水乙醇与苯的混合溶液为溶剂，以二硫化碳和单质硫为硫源。

The Soft-Hard Acid-Base Theory was used to interpret the experimental results for the first time, the softness of sulfur, which was a Lewis base, was changed by solvents, and the reactivity of sulfur atom was changed.

结果表明，砷化镓表面硫化层厚度与所用溶液的极性有关，用极性小的有机醇作溶剂可以得到更厚的硫钝化层。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。