worm-gears

英 ['wɜːmɡ'iəz] 美 ['wɜːmɡ'iəz]

• 蜗杆蜗轮副

英英释义

名词 worm gear:

1. gear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion