coarse-pitch involute system的意思|示意
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粗径节渐开线制
coarse-pitch involute system的网络常见释义
粗径节渐开线制 ... coarse-pitch screw 大螺距螺钉 coarse-pitch involute system 粗径节渐开线制 coarse pitch thread 粗螺纹 ; 粗螺距 ; 粗牙螺纹 ; 粗牙普通螺纹 ...