Occasionally enriched air or supple mental oxygen is available and a greater ratio of secondary reforming to primary reforming is possible . 偶爾有富氧空氣或補充氧的,因而二段轉(zhuǎn)化對一段轉(zhuǎn)化的大比例是可能的。
An experimental research on oxygen - enriched air methane counterflow diffusion flame 甲烷對向流擴散火焰的實驗研究
This expansion ratio also allows atmospheres of oxygen - enriched air to form in the area surrounding a release 該膨脹率還導致排氣口附近區(qū)域形成富氧氣氛。
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 鋼鐵制造商還廣泛使用氧或富氧空氣來影響同除碳和其它氧化反應(yīng)相聯(lián)系的化學精煉和加熱。
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 擁有至少100次潛水記錄,其中必須包括至少有20次使用高氧氣體, 25次深度有超越18公尺以及至少有15次的深度超過30公尺的潛水記錄