Fuel gas. A 20-pound (9.1 kg) propane cylinder. Fuel gas is any one of a number of fuels that are gaseous under ordinary conditions. Many fuel gases are composed of hydrocarbons (such as methane or propane), hydrogen, carbon monoxide, or mixtures thereof.
a substance that is used to provide heat or power, usually by being burned. 燃料;燃烧剂. Wood, coal, oil, petrol, and gas are all different kinds of fuel. 木材、煤炭、石油、汽油和天然气是不同 …
燃料. fire uk / faɪər/ us / faɪr/ A2 noun. (material that is in) the state of burning that produces flames that send out heat and light, and might produce smoke: Animals are usually afraid of …