Methane is a gas at ordinary temperatures and pressures, making it harder than gasoline and diesel to use as vehicle fuel.

甲烷在常温常压下是一种气体，使其比汽油、柴油更难作为汽车燃料使用。

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And, renewable diesel is a low-carbon fuel, even when its emissions are measured from the slaughterhouse to the refinery to the vehicle.

而且，即使从屠宰场到炼油厂再到汽车整个过程测量排放，可再生柴油依然是一种低碳燃料。

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An alternative fuel vehicle is a vehicle that runs on fuel other than traditional gasoline or diesel petrol.

另一种燃料车是一辆汽车，运行于其他燃料比传统汽油或柴油汽油。

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After speaking with a few experts, it seems clear what needs to be done: China has to reduce its reliance on coal, increase renewable energy, regulate the amount of smog-causing sulfur that can go into its diesel fuel and increase vehicle efficiency.

CNN: China needs smog-free air in a can