Design principle and construction technology of big calibre bedrock bench mark of shaft style are presented.

  • 基岩标是地面变形监测、高程控制测量的重要基准设施.

  • 互联网摘选 2025-01-18 10:58:05

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