常見例句雙語例句Why do we set a horizontal damp-proof course in a wall?墻體中為什么設(shè)置水平防潮層？www.hbwy.com.cnThe roofing system of National Showplace consists of framework, damp-proof course and layer of decoration.國家大劇院的屋面系統(tǒng)包括結(jié)構(gòu)層、防水層和裝飾層。 返回 damp proof course