The shaft is splined to lock into the disc to ensure positive rotation.
阀杆用花键锁在阀瓣上,以确保旋转灵活。
Positive values for the angle rotate the object clockwise if you look along the positive rotation axis.
角度为正值,则表示若您顺着正旋转轴方向观察,对象是按顺时针旋转的。
Propeller is designed distinctively, positive rotation for rolling. kneading and knocking, inversion for massage.
浆叶设计独特,正转滚揉摔打、反转按摩。
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