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.

本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本低,适巯基乙酸的生产,而硫脲法可得到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集，得到了镜质组、丝质组和稳定组三种富集物。

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.

本文对巯基乙酸的合成工艺进行了比较研究,认为钠法和代酸钠法生产成本低,适宜于矿用巯基乙酸的生产,而脲法可得到较的巯基乙酸。

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集，得到了镜质组、丝质组和稳定组三种富集物。

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.

本文对巯基乙的合成工艺进行了比较研究,认为氢化钠法和钠法生产成本低,适宜于矿用巯基乙的生产,而法可得到较高浓度的巯基乙。

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集，得到了镜质组、丝质组和稳定组三种富集物。

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,宜于矿用酸的生产,而硫脲法可得到较高浓度的酸。

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集，得到了镜质组、丝质组和稳定组三种富集物。

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.

本文对酸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本低,适宜于矿用酸生产,而硫脲法可得到较高浓度酸。

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离富集，得到了镜质组、丝质组和稳定组三种富集物。

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.

本文对巯基乙的合成工艺进行了比较研究,认为氢化钠法和钠法生产成本低,适宜于矿用巯基乙的生产,而法可得到较高浓度的巯基乙。

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集，得到了镜质组、丝质组和稳定组三种富集物。

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.

本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本低,适宜于矿用基乙酸的生产,而硫脲法可得到较高浓度的基乙酸。

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.

英国煤进行了显微组的集，得到了镜质组、丝质组和稳定组三种集物。

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.

本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本低,适宜于矿用巯基乙酸的生产,而硫脲法可得到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分的分离富集，得到了镜、和稳定三种富集物。

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.

本文对巯基乙酸的合成工艺进行了比较研究,认为氢化钠法代酸钠法生产成本低,适宜于矿用巯基乙酸的生产,而脲法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集，了镜质组、丝质组稳定组三种富集物。