air-cast smoke ball 空抛式发烟弹
smoke air volume 排烟量
air duct smoke detector 空气管道式感烟探测器
air sampling smoke detector 空气采样感烟探测器
air pollution by smoke 烟致空气污染
coal-smoke air pollution 我国燃煤污染
smoke and air system 烟风系统
smoke-air flow ratio control 烟空比控制
Wildfires can cause a lot of smoke, which will pollute the air.
野火会产生大量的烟雾，这些烟雾会污染空气。
The air is thick with acrid smoke from the fires.
空气中充满了火灾产生的刺鼻浓烟。
A dense column of smoke rose several miles into the air.
一柱浓烟升上几英里高的天空。
The International Union Against Cancer says about seven hundred million children breathe smoke-filled air.
VOA: special.2010.03.09
A big cloud of smoke rose high in the air over Fort Sumter.
VOA: special.2009.08.13
The air was yellow and black from the smoke, but the pay was good.
VOA: standard.2010.04.26
应用推荐