1)stone drain,石砌排水沟2)French drain,干砌石排水沟3)pulping line up the drain,浆砌排水沟4)hard core drain,填石排水沟5)stone drain,乱石盲沟排水6)brick sewer,砖砌污水沟
用法和例句
According to the experience of the pulping line up the drain management process,aims at the characteristics of it s work,puts forward the author s understanding and the viewpoint.