Nowadays, the personnel positioning system in coal mine has entered debugging and running-in stage.

  • 目前, 井下人员定位系统已经处于调试和试运行阶段,运行效果良好.

  • 互联网摘选 2025-01-20 12:56:10

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句