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Double Thread

双线螺纹；双头螺纹

1、双螺纹

... 双重拉伸试验 double tension test 双螺纹 double thread 双纹螺钉 double threaded screw ...

double-thread hob双头滚刀

double start thread双线螺纹;双头螺纹

double-thread screw双头螺纹;双纹螺纹螺钉;双纹螺纹螺钉英语

double-thread auger[机] 双头螺旋钻头

double point thread chaser叉形螺纹梳刀

double-thread method双丝法

double-thread worm双头蜗杆

交通运输工程

能源科学技术

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