The methodology of carbon balance analysis for fuel ethanol from corn was developed based on principles of life cycle analysis.

基于生命周期分析原理，建立了玉米燃料乙醇的碳平衡分析方法。

youdao

The method of net energy analysis for fuel ethanol from corn was developed based on principles of life cycle inventory(LCI) analysis.

基于生命周期清单分析原理，建立了玉米燃料乙醇的净能量分析方法。

youdao

But now the notion of exploiting trees for fuel is being updated with a high-tech twist. The idea is to make ethanol, a biofuel that usually comes from maize (corn) or sugar cane, from trees instead.

而如今开发树木作燃料的讨论与高科技密切相关，这就是从树木中提取乙醇，取代通常是从玉蜀黍（玉米）或蔗糖中提取的一种生物燃料。

youdao

Thus far the star of this new science has been ethanol, a car fuel made from corn, but around the world chemical, grain and biotech companies are working to produce auto paint, cosmetics, even apparel fiber from renewable resources.

FORBES: Magazine Article

Watkins says the rest of his fortune lies in ethanol, a fuel additive usually made from corn.

FORBES: Show Me the Money

This type of ethanol refers to fuel made from waste, wood, plants and other products, as opposed to the now widely produced corn ethanol.

FORBES: Bush's Energy Obstacle: Ethanol