ball-and-roller bearing

石油英语词汇... ... ball-and-pillow structure 球-枕状构造 ball-and-roller bearing 滚珠-滚柱轴承 ball-and-seat 单流阀 ...

机械工程英语翻译B-5... ... 球阀 ball valve 滚珠与滚子轴承 ball-and-roller bearing 球窝连结器 ball-and-socket bearing ...