The rest is supposed to come from advanced biofuels.
剩余产量应该来自于高级生物燃料。
Several Californian firms are also seeking to make advanced biofuels using modified bacteria.
几个加州的公司也在寻求运用改良过的细菌制造高级生物燃料。
Feedstock pathways for advanced biofuels include switchgrass, soybean oil, corn oil, crop residues, woody biomass and other feedstocks.
先进生物燃料的原料来源包括柳枝稷、大豆油、玉米油、农作物残余物、木质生物质等等。
Advanced biofuels from cellulosic material - plant waste and wood - are better, because they don't compete directly with food, but they still need reasonably fertile land in which to grow.
来自纤维素质的先进生物燃料-植物废物和木头-更好，因为他们不直接同食物竞争，但他们仍然需要适度肥沃的土地来生长。
Those problems might or might not be solved by more advanced biofuels, such as those made from the non-food or cellulosic parts of crop plants or even non-food crops such as switchgrass or algae.
是否能依靠更加先进的生物燃料(比如利用非食物农作物或者利用农作物的纤维素部分、甚至利用柳枝稷或者海藻这些非食物作物来制造生物燃料)来解决上述这些问题还是个未知数。
As we make our cars and trucks more efficient, we've got to harness new technologies to fuel our vehicles with everything from biofuels to natural gas to advanced batteries.
在使汽车和卡车更加高效的同时，我们必须利用高科技使我们的交通工具能够使用各种能源——生物燃料、自然气以及高性能电池。
As we make our cars and trucks more efficient, we've got to harness new technologies to fuel our vehicles with everything from biofuels to natural gas to advanced batteries.
在使汽车和卡车更加高效的同时，我们必须利用高科技使我们的交通工具能够使用各种能源——生物燃料、自然气以及高性能电池。
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