Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.通风: 为了使气体聚集程度维持在阀极限值之下,应提供通畅的向下棋流排气通风设施.Water vapor from the evaporative recovery process may be recondense...
The two principal combustion products are water vapor and carbon dioxide.两种主要的燃烧产物是水蒸气和二氧化碳。The car windows were fogged with vapor.车窗上满是雾气。When nitric acid is poured on copper, a brown vapor gives off.将硝酸倒在铜上, 会散发出一种棕色的蒸...
China's commitment to greenness appears to be ebbing.中国的绿色承诺似乎正在退色.Their popular support is ebbing away.他们的人气正在衰退。The pain was ebbing.疼痛逐渐减轻了。There are indications that his esoteric popularity may be ebbing.有迹象表明,他神...
In Wyoming, firefighters are still battling the two blazes.在怀俄明州，消防员还在为扑灭这两场大火而奋战。By the time firefighters were called the house was well ablaze.消防队员接到火警电话时,房子已是一片火海.The judge praised the firefighters for their bravery a...