Staffs of operation in pit

 
  • 井下作业人员

Staffs of operation in pit的用法和样例:

例句

  1. But the improving effect and benefit of downhole operation have not formed yet.
    但系统地提高井下作业效果与效益的管理思路尚未形成。

Staffs of operation in pit的相关资料:

临近单词

今日热词
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