plumbing的解释，在云词典中plumbing是什么意思？

plumbing

['plʌmiŋ]
n.
铅工业, 铅管品制造

A human being is an ingenious assembly of portable plumbing.
人类，是一堆可以随意拆卸的铅管零件的巧妙装配。
人类，是一堆可以随意拆卸的铅管零件的巧妙装配。
A human is an ingenious assembly of portable plumbing.
A low or narrow space, such as one beneath the upper or lower story of a building, that gives workers access to plumbing or wiring equipment.
爬行空隙一幢楼最高层或最底层下面可使工人进入维修管道或电线设备的矮而窄的空间
A system of pipes, such as those used in plumbing.
管道，管线，管道网一管道系统，如那些用来铺设铅管的