求翻译：土壤中的硝化菌、反硝化菌的代谢转换作用可将土壤中的NO3-、NO2-转化生成土壤有机物，以及生物还原转化，分解脱氮，使得最后排除的是无害N2。是什么意思？

Soil nitrifying bacteria and denitrifying bacteria in the role of metabolic conversion in the soil NO3-no2-conversion to generate soil organic matter and biological reductive transformation, decomposition of nitrogen removal, making the last excluded n2 is harmless.

nitrifying bacteria in the soil, and anti-bacterial nitrification of metabolic conversion can be in the soil, NO NO 3 - 2 - Generate into soil organic matter, as well as biological sub-relief, restore into nitrogen and make the final out of the harmless N 2.

In the soil nitrifying bacteria, the denitrification fungus metabolism transformation function may soil in NO3-, the NO2- transformation production soil organic matter, as well as the biological return to original state transforms, the decomposition denitrogenation, causes finally to remove is harml

Nitrifying bacteria and denitrifying bacteria in soil metabolic conversion NO3-, NO2-transformation of soil organic matter in the soil, as well as the transformation of biological reduction, decomposition and nitrogen, makes final exclusion of harmless N2.

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