gateway driving along next goaf

　
英 美
  • 沿空掘巷

gateway driving along next goaf的用法和樣例：

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，采空區壓實(shí)穩定是改善沿空掘巷維護狀況的先決條件。

gateway driving along next goaf的相關(guān)資料：

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