The bed surface rotating device is connected with the bed surface.
床面旋转装置连接床面。
So when using it, you will find yourself slowly rotating with your device.
当你使用它时，你会发现你在拿着个手机原地慢慢转。
A mechanical device for rotating the kelly.
旋转方钻杆的一种机械装置。
Its characteristic is the head of the device can move around, rotating.
其特点是该设备的压头可以左右移动、旋转。
A cover member is mounted in the device body to cover the rotating polygonal mirror.
盖构件安装于装置主体中以覆盖该旋转多面镜。
A cover member is mounted in the device body to cover the rotating polygonal mirror.
盖构件安装于装置主体中以覆盖该旋转多面镜。
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