Normal air, enriched air or pure oxygen can be used to support combustion.

空气、富气、和纯氧气都可用来支持燃烧。

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This expansion ratio also allows atmospheres of oxygen-enriched air to form in the area surrounding a release.

该膨胀率还导致排气口附近区域形成富氧气氛。

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The capacity production of fluidized bed roaster is mainly influenced by the clinker of cooling-jacket and the concentration of oxygen-enriched air blast.

冷却水套结渣和富氧是影响锌精矿沸腾焙烧炉生产能力的重要因素。

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He enriched the oxygen or the carbon dioxide in the air breathed by experimental subjects and found not a hint of suppression or exacerbation of yawning compared with control subjects breathing normal air.

WSJ: Matt Ridley on Why You Just Yawned | Mind & Matter