underfloor duct地板: floor board floor下: below; down; under; undernea ...管道: pipeline; channel; tunnel; p ...可调地板下管道: no stud floor duct地板下: underfloor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:地板下管道，即可在微信中查询翻译
