2760| 9
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螺旋傳動(dòng)動(dòng)畫,我制作的,,大家指點(diǎn) |
點(diǎn)評(píng)
這就是所謂的差動(dòng),?看螺紋旋向,這是相反,,按每轉(zhuǎn)進(jìn)給(大螺距-小螺距)
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