Occasionally enriched air or supple mental oxygen is available and a greater ratio of secondary reforming to primary reforming is possible . 偶尔有富氧空气或补充氧的,因而二段转化对一段转化的大比例是可能的。
An experimental research on oxygen - enriched air methane counterflow diffusion flame 甲烷对向流扩散火焰的实验研究
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。
Steel and iron manufacturers also extensively use oxygen or oxygen - enriched air to affect chemical refining and heating associated with carbon removal and other oxidation reactions 钢铁制造商还广泛使用氧或富氧空气来影响同除碳和其它氧化反应相联系的化学精炼和加热。
Have minimum of 100 logged dives , of which at least 20 dives were made with enriched air nitrox , 25 dives were deeper than 18 meters and at least 15 dives were deeper than 30 meters 拥有至少100次潜水记录,其中必须包括至少有20次使用高氧气体, 25次深度有超越18公尺以及至少有15次的深度超过30公尺的潜水记录