异养细菌可以吃掉未处理污水当中的大部分碳基物质；而自养细菌则会消耗掉氨氮化合物。
Heterotrophic bacteria eat most of the carbon-based materials in raw sewage while autotrophic bacteria consume ammonia and nitrogen compounds.
自养生物：一种能够从无机物质如光或化学能量中合成出自身食物的有机体。绿色植物，海藻及某些细菌都是自养生物。
Autotroph: an organism capable of synthesizing its own food from inorganic substances using light or chemical energy. green plants algae and certain bacteria are autotrophs.
自养生物一种能够从无机物质如光或化学能量中合成出自身食物的有机体。绿色植物，海藻及某些细菌都是。
An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
生产者，有时被称为自养生物，使营养物质从他们所需要的化合物和能源得到他们的环境。
Producers, sometimes called autotrophs, make the nutrients they need from compounds and energy obtained from their environment.
生产者，有时被称为自养生物，使营养物质从他们所需要的化合物和能源得到他们的环境。
Producers, sometimes called autotrophs, make the nutrients they need from compounds and energy obtained from their environment.
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