... 直线滚花 straight-line knurling; straight-line knurls; 直线滚花头螺钉 screw with straight-line; 直线焊缝 straight bead; ...
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screw with straight-line knurls 直线滚花头螺钉 ; 直线滚花螺钉
screw with straight line 直线滚花头螺钉
This lubrication film is easily established with "straight line enveloping screw pair" rotors, but this kind of engagement pair is very difficult to machine.
本文提出采用“圆台二次包络啮合副”作为单螺杆压缩机啮合副的型线。
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