根据可再生燃料标准，乙醇及其它可再生燃料的生命周期温室气体排放量必须比汽油低20%。
To qualify under the RFS, ethanol and other fuels would have to reduce life-cycle greenhouse gas emissions by 20 percent compared with gasoline.
根据可再生燃料标准，乙醇及其它可再生燃料的生命周期温室气体排放量必须比汽油低20%。
To qualify under the RFS, ethanol and other fuels would have to reduce life-cycle greenhouse gas emissions by 20 percent compared with gasoline.
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