useful energy

Faeces are food that has been processed by the human digestive system to extract as much useful energy as possible.

人类粪便是已经被人类消化体统为了最大化汲取能量而处理过了的食物。

One way to release useful energy from plant matter is to ferment it into biofuels, as Synthetic Genomics, LS9 and Amyris are trying to do.

释放植物有用能源的一个方式是将其发酵转化为生物燃料，就如Synthetic Genomics, LS 9 and Amyris他们正在尝试做的。

Getting useful energy from formate is now the simplest way known for any life form to get its fuel, though it relies on the absence of oxygen.

从甲酸盐中获取所需的能量是目前最简单的维持生命方式，虽然它依赖于无氧的环境。