短語詞組短語fuel coal gas 燃料煤氣fuel dissolved gas 燃油溶氣fuel natural gas 燃料天然氣fuel rich gas 富油氣diesel fuel waste gas 柴油廢氣fuel -gas pipeline 燃?xì)猬g道single fuel natural gas engine 天然氣單燃料發(fā)動機oxy -fuel l gas welding 氧燃料氣銲接butane fuel gas tube 丁烷氣琯 返回 fuel gas