For example, a steam engine can use coal, newspaper or wood for the fuel, while an internal combustion engine needs pure, high-quality liquid or gaseous fuel.
例如，蒸汽发动机可以用煤，报纸或木头作为燃料，而内燃机需要用纯的，高质量液体燃料或气体燃料。
2
Steam is water in a gaseous condition.
蒸气就是气体状态的水。
3
After the injection of a gaseous mixture of steam and gas into a turbine a change in turbocharger operating condition will take place.