sinking by boring

英 美
  • 钻井法凿井
  • boring adj.令人厌烦的;乏味的
  • by prep.靠近;通过;被;经由;不迟于adv.经过;在旁边;靠近
  • sinking adj.下沉的n.下沉;凹陷;虚脱感动词sink的现在分词形式.
    1. The mine shaft sinking with a mine shaft drilling is a reliable mine shaft construction method to pass through a deep and thick alluvium.
      钻井法凿井是通过深厚冲积层最可靠的竖井施工方法。