... 螺距修正 pitch correction 螺距直径比 pitch diameter ratio 螺距指示器 pitch indicator ...
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pitch-diameter ratio 螺距直径比
pitch to diameter ratio 距径比
face pitch to diameter ratio 叶面螺距与直径比
screw-pitch and inner diameter ratio 螺距内径比
·2,447,543篇论文数据，部分数据来源于NoteExpress
Pulleys are on the market that permit an adjustment in the width of the groove. The effective pitch diameter of the pulley is thus varied, and moderate changes in the speed ratio can be secured.
带轮运行一定时间后，槽的宽度可以调节，这样带轮的节距是变化的，因此需要进行适当的调整以满足速度比的要求。
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