Ballut巴吕
balln.球;球状物;炮弹;舞会;愉快的经历;<口>胆量;胡说;(复)睾丸v.使成球状;呈球状;<俚>性交
ballscrew nut fitting滚珠丝杆螺母副
Balls's sledge sorter
ball grinding machine钢球磨床
ball bearing shielded带防尘盖球轴承
ball bearing retainer球轴承保持架
ball-frame carriage滚珠支座
ball-rubbing-type磨球式
ball socketed bearing耳轴轴承
ball-bearing center滚珠轴承中心
ball end milling tool球头铣刀