ball-race bearing

• 滚珠轴承

ball-race bearing的用法和样例：

例句

1. A ball bearing had bounced off the submarine's hull.
   潜艇船身上崩掉了一个滚珠轴承。
2. Large sheave mounted on sealed ball bearings for high efficiency.
   安装在密封滚珠轴承上的大型滑轮，有相当出色的效率。