Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.
文对巯基乙酸的合成工艺进行了比较研究,认为硫氢化钠法和硫代硫酸钠法生产成低,适宜于矿用巯基乙酸的生产,而硫脲法可较高浓度的巯基乙酸。
Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.
文对巯基乙酸的合成工艺进行了比较研究,认为硫氢化钠法和硫代硫酸钠法生产成低,适宜于矿用巯基乙酸的生产,而硫脲法可较高浓度的巯基乙酸。
Three maceral groups,vitrinite,fusinite and exinite,seperated from Britain coal and their gasification kinetics in CO2 have been investigated by TGA at the pressure of 0.
对英国煤进行了显微组分的分离富,了镜质组、丝质组和稳定组三种富物。
声明:以上例、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表软件的观点;若发现问题,欢迎向我们指正。