The motion relationships of the crust and the core of the earth are shown by starting the motor or rotating the hand crank.

  • 通过启动电机或转动手摇,可反映到地壳和地核的运动关系。

  • 互联网摘选 2025-01-20 11:44:30

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