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
ball milling machine磨球机
ball type viscometer球形粘度计
ball blast technique抛丸工艺
ball forming machine制球机床
ball steel structure球壳钢结构
Ballingall's disease
Ball helical gearing滚珠螺旋传动
ball bifurcated pipe球形岔管
ball joint separator球节分离器
Ballance's retractor