Remove knob by counter-clockwise rotation, simultaneously, pull away from body.
逆时针方向旋转拆卸旋钮，同时将其拉出阀体。
Its function is to achieve the right image clockwise and counter-clockwise rotation.
其功能是实现对图象的顺时针和逆时针旋转。
Its function is to achieve the right image clockwise and counter-clockwise rotation.
其功能是实现对图象的顺时针和逆时针旋转。
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