Based on the concentration of drained gas, gas turbine or gas internal combustion engine can be selected to realize combined heat and power production with considerable benefits.

煤层气作为一种洁净能源进行发电，可根据气体的浓度，选择燃气轮机或燃气内燃机，进行热电联产具有很好的效益。

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Based on the concentration of drained gas, gas turbine or gas internal combustion engine can be selected to realize combined heat and power production with considerable benefits.

煤层气作为一种洁净能源进行发电，可根据开采气体的浓度，选择燃气轮机或燃气内燃机，进行热电联产具有很好的效益。

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But until they are widely available, simple changes to the internal combustion engine-and the way we drive-could as much as double gas mileage.

但是，在这些汽车还没有广泛使用之前，对内燃机简单的改变以及我们驾驶方式的改变能使汽油里程加倍。

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It was not until Henry Ford's gas-powered Model T that the internal combustion engine and the car became inseparable.

VOA: special.2010.11.17

When the battery is depleted (or when driven at very high speeds), the premium-gas internal combustion engine powers the car, but its fuel mileage suffers from having to shove around 400lbs of batteries.

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In the mean time we just have to deal with gas, and I am sure some day a new technology will eventually replace the internal combustion engine.

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