Oxygen is essential for the metabolic process known as cell respiration that allows cells to efficiently harvest energy from organic food.

氧气在细胞呼吸的新陈代谢过程中是必不可少的，它能使细胞有效地从有机食物中获取能量。

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It is actually something fundamentally different about how you can harvest energy.

它在如何收获能源的方式上确实有着根本性的区别。

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But what if there were a compact, flexible material that could harvest energy from the body's own movement?

但如果有一种致密柔韧的材料，它可以从自身肢体动作收集能量，那会如何呢？

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Researchers discuss investigations into innovative ways to harvest energy from plant materials, including gasoline-like chemicals and hydrogen production.

NPR: Scientists Seek New Ways to Produce Biofuel

In green transportation news, LA Metro announced an exciting new program that will harvest energy from subway trains.

ENGADGET: Inhabitat's Week in Green: self-sustaining homes, wooden wind turbines and the world's first solar-powered nation

In 2007 In-Q-Tel plugged into AdaptivEnergy, a company that develops products that harvest energy from impulse shocks, vibrations, and even footfalls.

FORBES: Business In The Beltway