该旋转体由圆柱形滚筒形成。
The rotating body may be formed in a shape of a cylindrical drum.
运动件可具有至少两个圆柱形滚筒以及连接于该滚筒之间的环形带或链。
The moving body may have at least two cylindrical drums and an endless belt connected between the drums.
运动件可具有至少两个圆柱形滚筒以及连接于该滚筒之间的环形带或链。
The moving body may have at least two cylindrical drums and an endless belt connected between the drums.
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