drain line疏: dredge neglect泄: let out; discharge; release管: pipe; tube小便池舷外疏泄管: overboard urinal drain line泄管: exit tube下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:疏泄管,即可在微信中查询翻译