worm-thread蜗杆螺纹
worm-thread tool gauge齿轮滚刀用样板
worm-thread tool gage齿轮滚刀用样板
Worm & Thread Milling Machine蜗杆螺纹铣床
hair worm thread worm毛线虫
master worm with one thread单头测量蜗杆
thread worm螺纹蜗杆;蛲虫;线虫类
worm-wheel hob thread蜗轮滚刀螺纹
two-thread worm[机] 双头蜗杆;双头螺纹螺杆