一些批评人士指出，玉米乙醇的生产所消耗的化石燃料能源比它最终生产的生物燃料能源还要多。
Some critics have suggested that the production of corn ethanol uses up more fossil fuel energy than the biofuel energy it eventually produces.
然后再将剩余的物质精炼，最终生产出了能被汽车利用的燃料。
The leftover products are then refined to produce a fuel that cars can use.
它们最终生产的清洁电力将满足33000家庭的年均用电需求。
It will eventually generate enough clean electricity to meet the average annual needs of some 33, 000 homes.
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