- double thread worm
- double-thread worm
- 双头 double-end
- 蜗杆 worm; endless screw
- 单头蜗杆 single-start worm
- 多头蜗杆 multi thread worm; multiple thread worm; multiple-thread worm; multithread worm
- 单头多头蜗杆 singl-and-multi-start worm; single and multi start worm
- 双头 double-end◇双头泵 bull pump; 双头螺栓 stud; 双头螺丝钉 dowel screw; 双头螺纹 double threaded (screw); stud bolt; 双头卡规 double-end snap gauge; 双头镗床 double-ended boring machine; 双头蜗杆 double-thread worm
- 蜗杆 [机械工程] worm; endless screw◇蜗杆轴 worm shaft
- 双头泵 bull pump
- 双头冲 double end punch; double-end punch; doubleendpunch
- 双头船 double -ended vessel
- 双头的 bicephalic; bicephalous; biceps; bicipital; dicephalous; double-edged; double-end
- 双头灯 two-burner lamp
- 双头钉 double headed spike; double-headed nail; double-headed spike; double-pointed nail; duplex nail; duplex-headed nail
- 双头斧 rune master ettin axe
- 双头缸 double-end cylinder
- 双头轨 double-head rail
- 双头肌 biceps
- 双头剑 sword two-bladed; sword,two-bladed
- 双头肋 costa dorsalis
- 双头龙 doublecross; thd; twin head dragon
- 双头炉 double burner
- 双头魔 bastado
- 双头镊 double forceps
- 双头蛇 amphisbaena
- 双头式 bicipitalor two-rib; double heads
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