Yangquan Coal Group Corporation has in high-production and high-effect mine construction recently, but still keeps some pace with advanced level at home and abroad.

 
  • 摘要近年來(lái),陽(yáng)泉煤業(yè)集團公司在高產(chǎn)高效礦井建設方面取得了一定成績(jì),但與國內外先進(jìn)水平相比仍有較大差距。
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