短语词组短语plumb bob [测]铅锤;[建]垂球;[建]测锤;锤球plumb pile [建]垂直桩;垂直椿;垂直桩Ralph Plumb 街道地址plumb stern 垂直艉J Plumb 标签Senior Plumb 高级给排水工程师S Plumb 标签plumb perpendicular 用垂球测定垂直度plumb promotion 眼睑松弛;垂直提升plumb line 铅垂线(等于plumb rule) 返回 plumb