open mines

 
  • 露天礦

open mines的用法和樣例:

例句

  1. Rain has serious effect on the operation of long and narrow deep open pit.
    降雨對狹長深凹露天礦的生產有嚴重的影響。
  2. Most of large and middle scale open-pit mines in China have reached deep mining.
    摘要我國的大多數大中型露天礦山已經或即將進入深部開採。
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