He does not know how to make use of this waste gas. 他不知如何利用這種廢氣。
Cars pollute the air in the form of waste gas. 汽車以廢氣的形式污染空氣。
Steam generation from this hot flue gas is a last resort option. 從這種高溫煙道氣生產蒸汽是一種最後的選擇。
This gas should be effectively utilized as preheated oxidant to steam methane reforming furnaces or to other large radiant-type process furnaces. 這種煙道氣應有效地用作預熱氧化劑，用於蒸汽甲烷重整鍋爐或其他大型輻射型工藝鍋爐。
The surface of the sun is a glowing gas envelope. 太陽的表面是一層熾熱的氣體層。
This is gas about to undergo further treatment. 這是一種馬上要進一步處理的氣體。
