石炭井矿区是西北重要的炼、配焦煤供应基地之一,由于生产年代长远,矿区内已面临着煤炭资源枯竭的重大问题。
Shitanjing mining area is the one of important provision base of coking co al and blending coking coal in Northwestern China.
石炭井矿区是西北重要的炼、配焦煤供应基地之一,由于生产年代长远,矿区内已面临着煤炭资源枯竭的重大问题。
Shitanjing mining area is the one of important provision base of coking co al and blending coking coal in Northwestern China.
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