autotroph

美 [ˈɔːtətroʊf]英 [ˈɔːtətrəʊf]

autotroph

noun

biology 生自养生物（能利用二氧化碳等简单化学物质制造自身食物）
a living thing that is able to make its own food using simple chemical substances such as carbon dioxide

noun

plant capable of synthesizing its own food from simple organic substances: Synonym: autophyte autophytic plant autotrophic organism

数据来源：WordNet

1

This trait , along with the group 's deep branching in the tree of life , has lead to the belief that the last common ancestor of life may be a thermophilic autotroph growing in a hydrothermal system .

这个特性连同生命树群的深入分支说明生命最后共同的祖先可能是在热液体系中的嗜热自养生物。
2

As for the above mentioned problems , we bring forward to improved A2 / O process , which uses the technology of cultivating the microbe heterotrophic bacteria and autotroph bacteria separately and shortening the aeration time in the activated sludge system to enhance the nutriment removal .

针对这些问题，提出了改进A2/O工艺，它采用微生物异养菌与自养菌分相培养，缩短活性污泥段好氧段曝气时间等技术，以提高系统的脱氮除磷效果。