advance shoring

英 美
  • 超前支护
  • advance n.前进;进展;预付金v.前进;预付;增长;推进adj.预先的;提前的
  • shoring n.利用支柱的支撑;支柱动词shore的现在分词形式.
    1. The advance support of intake and return aircourse needs a lot of plate girders in the comprehensive mechanized coal mining face.
      综采工作面的进回风巷超前支护要用很多板梁。