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.

本文巯基乙酸的合成工艺进较研究,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.

英煤进显微组分的分离富集，得到镜质组、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.

对英国煤进行显微组分的分离富集，得质组、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,认为硫氢化法和硫代硫酸法成本低,适宜于矿用巯基乙酸的,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.

本文对巯基乙合工艺进行了比较研究,认为硫氢化钠法和硫代硫钠法本低,适宜于矿用巯基乙,而硫脲法可得到较高浓度巯基乙。

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.

本文对基乙酸合成工艺进行了比较研究,氢化钠法和代酸钠法生产成本低,适宜于矿用基乙酸生产,而脲法可得到较高浓基乙酸。

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.

本文对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,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.

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比较研究,认为硫氢化钠法和硫代硫酸钠法生产本低,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.

对英国煤显微组分的分离富集，得到镜质组、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.

文对巯的合工艺进行了比较研究,认为硫氢化钠法和硫代硫钠法生产,适宜于矿用巯的生产,而硫脲法可得到较高浓度的巯。

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。