微生物使重要的化学元素例如碳和氮进行循环，从而帮助保持这个世界能让所有的生物类型生存居住。
Microbial cycling of such critical chemical elements as carbon and nitrogen helps keep the world inhabitable for all life forms.
碳氮循环对农业生产和全球气候稳定性而言，具有极其重要的意义。
Carbon and nitrogen cycles are very important to agricultural productivity and global climate stability.
随着新陈代谢作用的进行，以氨基糖为代表的微生物细胞壁残留物不断在土壤中积累，并进一步参与土壤碳、氮循环。
During the metabolism, the microbial residues represented as amino sugars were accumulated in soil and probably concerned in further carbon and nitrogen cycling.
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