Ballan巴兰
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 type guy insulator球形拉线绝缘子
Ball Grid Array Package焊球陈列封装
ball screw transmission丝杠传动
ball non-return valve单向球阀
ball-joint suspension用球窝接合的独立悬架
ball-end cutting tool刀具扫描体
ball headed conical bolt球头锥形螺栓
ball sleeve tubing union球套管节
ball and burlap planting土球包扎装置
Ball Screw Shaft Grinder滚珠丝杠磨床