Ballesn.巴利斯
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
ball-pin riveting球销铆接
ball control points球形控制点
Ballantine's Finest
ball bearing steels[化] 轴承钢
ball milling grains球磨砂
ball tipped pipette安全吸移管
ball screw actuator滚珠螺旋致动器
ball-and-socket滚珠和承窝
ball pointed pliers球尖镊, 圆头镊
ball bearing grease滚珠轴承润滑脂