ball bearing
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌball ˈbearing noun [countable] 1. Tan arrangement of small metal balls that move in a ring, to make a part inside a machine turn more easily 滚珠轴承2. Tone of these metal balls 滚珠
Examples from the Corpus
ball bearing• In the first system the rotation of the mouse's wheels or ball bearing are transferred to rollers.ˌball ˈbearing nounChineseSyllable
arrangement metal Corpus small of that balls an
ball bearing
ˌball ˈbearing
noun [countable]
1. small metal balls that move in a ring, to make a part inside a machine turn more easily
2. one of these metal balls
ˌball ˈbearing
noun [countable]1. small metal balls that move in a ring, to make a part inside a machine turn more easily
2. one of these metal balls
