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，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.

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

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研究,认为硫法和硫代硫酸法生产成本低,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.

本文对巯基合成工艺进行了比较研究,认为硫氢化钠法和硫代硫钠法生产成本低,适宜于矿用巯基生产,而硫脲法可得到较高浓度巯基。

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.

对英国煤进行了显离富集，得到了镜质、丝质和稳定三种富集物。

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,认为氢化钠法酸钠法生产成本低,适宜于矿用巯基乙酸的生产,而脲法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，到了镜质组、丝质组稳定组三种富集物。

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研究,认为硫氢化法硫代硫酸法生产成本低,适宜于矿用巯基乙酸的生产,而硫脲法可高浓度的巯基乙酸。

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。

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，得到了镜质、丝质和三种富集物。