shaft and tunnel

 
  • 井巷

shaft and tunnel的用法和樣例:

例句

  1. Shaft is the throat of mine for a long time,the concrete strength and anti-seep-age of shaft lining as well as the quality of the lining linkage are not ideal.
    立井是礦井的咽喉,但立井的砼井壁的強度及抗滲性以及接茬處的質量長期以來不盡人意,是井巷工程中急待解決的問題。

shaft and tunnel的相關資料:

臨近單詞

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