旋转对称(或称放射对称)是指某一物体绕着某一点在某一方向上做转动。
Rotational symmetry (or radial symmetry) is when an object is rotated in a certain direction around a point.
用手轻轻转动，使盖子沿箭头?方向快速旋转。
Rotate the cap with your hand lightly in the direction as indicated by the arrow.
转动旋扭（如图）开机，可以根据需要调节旋扭可以控制摄像头灯的亮度，朝反方向朝反方向旋转可关闭电源；
Turn the knob to turn on the unit as the above diagram. You can adjust the brightness of the Camera lights by turn this knob too. Turn the knob at the opposite direction; you can turn off the unit.
一种能使刷头随转轴一起转动，并且还可以改变旋转方向的双向旋转式电动牙刷。
The utility model relates to a two-way rotary electric toothbrush. The brush head of the utility model can rotate with a rotating shaft and the rotating direction can be changed.
根据旋转阻挡装置的方式，SOWC可沿两个方向惯性转动，或者沿一个或两个方向保持扭矩。
The SOWC freewheels in both directions, or holds torque in one or both directions, depending on how the blocking device is rotated.
按顺时针方向转动头部，然后再逆时针旋转。
襟翼的伸出和收上系统内的具有两个圆环的机械部件。两个圆环的旋转轴相互垂直，以使部件在两个方向都能转动。
A mechanical component with two rings pivoted on axes at right angles to each other allowing movement in two directions used in the flap extension and retraction system.
襟翼的伸出和收上系统内的具有两个圆环的机械部件。两个圆环的旋转轴相互垂直，以使部件在两个方向都能转动。
A mechanical component with two rings pivoted on axes at right angles to each other allowing movement in two directions used in the flap extension and retraction system.
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