unvented
美
英 
例句
Water supply - Specification for indirectly heated unvented (closed) storage water heaters
供水間接加熱無排水口(封閉)熱水貯存系統(tǒng)規(guī)范
Specification for expansion vessels using an internal diaphragm, for unvented hot water supply systems
非排放式熱水供應(yīng)系統(tǒng)用的采用內(nèi)隔膜的膨脹器規(guī)范
Ventless Firebox Enclosures for Gas-Fired Decorative type Unvented Room Heaters
燃?xì)?/c>裝飾型非通風(fēng)室內(nèi)加熱器用非通風(fēng)外殼
Specification for unvented hot water storage units and packages
無排氣口的蓄熱水裝置和包裝規(guī)范
Unvented kerosene-fired room heaters and portable heaters
無通風(fēng)裝置燃煤油房間加熱器和便攜式加熱器
Unvented thermal storage type electric water heater
無排氣管貯水式電熱水器