片语
ball cage assembly球和保持架组件
ball cage detail滚珠轴承罩
ball bearing cage球轴承保持架
ball-cage type constant velocity joint球笼式万向节
ball and cage assembly[机]
ball-cage mechanical prosthetic valve球笼型机械瓣
ball and cage thrust assembly[机]
Ball cage guiding pillars滚柱隔离圈导桿
ball and cage radial assembly[机]