Create a Rotation Key on
创建Y轴的旋转关键帧
Create a Rotation Key on Z
创建Z轴的旋转关键帧
the revolution of the earth on its axis round the sun
地球以太阳为轴的旋转.
Create a Rotation Key on X
创建X轴的旋转关键帧
Bearings keep the shafts steady.
轴承可以使轴的旋转保持平稳。
Driving power for the cutting tool comes from the rotation of the spindle, which is a hollow shaft that rotates in bearings.
刀具的驱动力来自主轴的旋转，主轴则是一根在轴承中旋转的空心轴。
The rotational inertias of uniform rotational rigid surfaces about the around axis
均质旋转面绕旋转轴转动的转动惯量
The rotational angle of a ball around its rotational axis.
转轴角-----球旋转时转轴的水平角度。
The part of a vertical shaft that turns in a bearing.
轴踵轴承中能旋转的垂直的轴
An axis or shaft supporting a rotating part on a lathe.
柄轴，心轴支撑车床旋转部件的轴或杠
A wheel revolves round [on] its axis.
轮子是绕轴旋转的。
the act of rotating as if on an axis.
象一个轴一样的旋转。
a chair that swivels on its base.
底座上有旋转轴的椅子。
A wheel revolves round/on its axis.
轮子是绕轴旋转的.
Capable of or exhibiting rotation about a central axis.
旋转的能够绕中心轴旋转的，或正在绕中心轴旋转的
any of various shafts that rotate or serve as axes for larger rotating parts.
作为大的旋转零件的轴的各种轴。
In rotating, the shaft splashes oil up into the bearings.
当轴旋转的时候就把油溅入轴承。
Bar or rod joining parts of a machine or transmitting power in a machine
（机器的）连杆，传动轴，旋转轴