W 开头单词

worm snake

worm shaped

worm shaft n. 蜗杆轴，蜗轴

worm seed

worm reducer 蜗轮减速机；[机] 蜗轮减速器

worm mesh [交通运输工程]蜗杆啮合

worm macule [医药科学]虫斑

worm lizard 蚯蜥

worm holes

worm hole

worm hob [机械工程]蜗轮滚刀蜗杆滚齿刀

worm gears

worm gearing 蜗轮传动装置

worm gear hob [经济学]蜗轮滚刀[机械工程]蜗轮滚刀

worm gear grease [经济学]蜗轮润滑脂

worm gear drive 蜗轮传动

worm gear 蜗轮；螺旋齿

worm fence

worm eaten

worm driving pinion [经济学]蜗杆传动主动齿轮