drainpipes造句

Bad , nauseating smells coming from drainpipes into apartments.
公寓排水管道发出恶臭.

There are two pipes, ( waste water ) the drainpipes should be seamless pipe plated by zinc.
卫生单元有两路排水管, ( 污水、疏水 ) 排水管为无缝钢管镀锌.

• #drainpipes