According to the invention, the operating member is arranged, during operation, always to rotate the main contact (11) in one and the same direction of rotation.
根据本发明，所述操作部件设置为在操作过程中总是以一个相同的旋转方向旋转所述主接触件(11)。
Through detecting the same edge in one period of Phase a to judge its direction of rotation precisely, a method for error-free measurement has been given.
通过检测A相一个周期的同一边沿，可精确判断其旋转方向，给出了无误差测量的实现方法。
One side of the knife body is provided with a kidney-shaped hole that stretches put along the rotational direction of the knife body so as to facilitate the rotation of the knife body.
在刀具本体上的一侧开设有一沿刀具本体转动方向伸展的腰形孔，以方便转动刀具本体。
One side of the knife body is provided with a kidney-shaped hole that stretches put along the rotational direction of the knife body so as to facilitate the rotation of the knife body.
在刀具本体上的一侧开设有一沿刀具本体转动方向伸展的腰形孔，以方便转动刀具本体。
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