Staffs of operation in pit
英
美
井下作业人员
Staffs of operation in pit的用法和样例:
例句
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
staff
staff ship
目录
查词历史
英 汉