例句與造句

1. The atmosphere they create has a combination of gases such as hydrogen, water, ammonia, methane, and carbon dioxide .
   他們創(chuàng)造的大氣是由諸如氫、水、氨、甲烷和二氧化碳混合而成的氣體。
2. The air seemed thin as though its combination of gases had little oxygen left
   空氣似乎很稀薄，好像在混合的氣體中剩下的氧氣很少。
3. The compositions of products from alkylation of m / o - cresols were analyzed by combination of gas chromatography and mass spectrometry ( gc - ms ) . the analysis method for such compositions was established
   1電石深加工行業(yè)的現(xiàn)狀和發(fā)展思路電石生產(chǎn)已有近百年歷史,發(fā)達(dá)國家已轉(zhuǎn)向利用石油、天然氣資源替代電石生產(chǎn)化工產(chǎn)品.中國缺油多煤的國情,使電石生產(chǎn)仍然保持快速發(fā)展勢頭
4. It's difficult to find combination of gases in a sentence. 用combination of gases造句挺難的