除了粮食产量之外，还有许多不同的方法来衡量农业表现：能源使用、环境成本、水的纯度、碳足迹和生物多样性。
There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity.
包括猪与家禽，他们构成了我们星球上庞大的生物足迹的一个关键部分。
With pigs and poultry, they form a critical part of our enormous biological footprint upon this planet.
研究发现，一些生物塑料比某些由石油制成的塑料拥有更高的环境足迹。
Some bioplastics have a higher environmental footprint than certain petroleum-based plastics, research finds.
如果这项合作成功，将可以减少飞机的碳足迹，并避免其他生物燃料对全球粮食供应产生的负面影响。
If this venture is successful, it could reduce the carbon footprint of airplane travel, and avoid the negative impact that other biofuels have on the global food supply.
丹佛科罗拉多大学的古生物学家马丁•劳克雷评论说，即使只有这些足迹也很能说明这些古代鸟类的进食行为。
Even the tracks alone say a lot about the feeding behavior of the ancient birds, commented paleontologist Martin Lockley of the University of Colorado in Denver.
对那些为生产生物塑料而提供原材料的作物来说，供其生长的化学品和能量会留下更深的足迹。
Chemicals and energy needed to grow the crops that provide the raw materials for bioplastics create the larger footprint.
这份报告的题目是《生物燃料的水足迹：一个关系到饮水还是开车的问题》。
The study is titled The Water Footprint of Biofuels: A Drink or Drive Issue?
院子里雪地上，狐狸和水獭所留下的足迹犹新，这使我们想起：即使在冬夜最静寂的时候，自然界生物没有一个钟头不在活动，它们还在雪上留下痕迹。
The recent tracks of the fox or otter, in the yard, remind us that each hour of the night is crowded with events, and the 28 primeval nature is still working and making tracks in the snow.
本文研究立体赤足迹的形态特征提取与生物特征分析。
This paper studies the pick-up of the three-dimensional footprint characteristic and biological characteristic analysis.
我们的生活方式会留下碳足迹，从而影响到其他每一个人、其它各种生物、以及我们共同栖居的地球。
The very way we live leaves a carbon footprint, affecting every other human, our fellow creatures and the earth we cohabit.
但还有另一个足迹我们也必须考虑。它完全如同排放出的气体尾或臭氧耗尽和我们的生物圈中生活质量完全有着一样的关联。
But there's another footprint we ought to consider, too - one that has every bit as much to do with the quality of life here in the biosphere as fossil fuel emissions or ozone depletion, if not more.
立体足迹重压面的分布反映了人体的行为特征和心理特征，立体足迹的分割和描述是足迹生物特征识别的基础。
The distribution of footprint heavy pressure surface reflects the behavior feature and the physiological feature of human body.
立体足迹重压面的分布反映了人体的行为特征和心理特征，立体足迹的分割和描述是足迹生物特征识别的基础。
The distribution of footprint heavy pressure surface reflects the behavior feature and the physiological feature of human body.
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