Datong Coal Mine Area

 
  • 大同矿区

Datong Coal Mine Area的用法和样例:

例句

  1. According to the studying and acquainting with the direct roof control of Datong mining area,this paper offers a kind of simple and workable classification for direct roofs.
    根据作者对大同矿区直接顶板控制的研究和了解,提出了一种简单易行的直接顶分类方法。

Datong Coal Mine Area的相关资料:

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