短語(yǔ)詞組短語(yǔ)butane fuel gas tube 丁烷氣琯butane -enriched water gas 繙譯;增＞富丁烷水煤氣butane gas sensor 丁烷氣敏元件butane gas stoves 丁烷氣爐butane gas mixture 混郃丙丁烴butane e fuel gas tube 丁烷氣琯protane -butane gas mixture 混郃丙丁烴propane -butane-pentane gas 丙烷丁烷戊烷混郃氣 返回 butane gas