常見例句雙語例句Emergency vent Manhole Cover is a kind of rapid relief-pressure device. Its technical performance, main material and main parts'materialare the same as HXF-HR type breather manholes.緊急放空人孔是快速泄壓裝置，其技術(shù)性能、主要零部件材料與HXF-HR呼吸人孔相同。All UL142 tanks supplied by FMC Tanks are supplied with the properly sized normal and emergency vent openings to affect the safe venting of tanks in the event of a fire or rapid temperature increase.FMC罐産品公司供應(yīng)的所有UL142雙壁罐都配有適儅尺寸的正常和緊急通風(fēng)口，以使罐能夠在發(fā)生影響或溫度上陞時(shí)安全通風(fēng)。www.e-gtm.com.cn 返回 emergency vent