1) closed heat supply system
封闭式供热系统
2) closed system of heating
封闭式供暖系统
3) closed-type hot-water heat-supply system
闭式热水供热系统
4) closed type steam heating system
闭式蒸汽供热系统
5) closed scheme of hot-water supply
闭式热水供应系统
6) closed hot water heating system
封闭式热水暖气系统
补充资料：封闭
①严密盖住或关住使不能通行或随便打开 ：大雪～了道路ㄧ用火漆～瓶口。②查封：～赌场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条