gateway driving along next goaf

 
  • 沿空掘巷

gateway driving along next goaf的用法和样例:

例句

  1. The results show that the gob entry driving stabled is the first importart condition on improvingmaintain of the gob entry driving.
    研究表明,采空区压实稳定是改善沿空掘巷维护状况的先决条件。

gateway driving along next goaf的相关资料:

临近单词

今日热词
目录 附录 查词历史