“free living nitrogen fixation”的概念、定义、翻译、参考文献-科学参考

单词	free living nitrogen fixation
释义	free living nitrogen fixation Encyclopedia 农学自生固氮作用释 free living nitrogen fixation自生固氮作用独自生活在土壤、水域或培养基中与其他生物无依存关系的一类原核生物将分子态氮还原为氨的过程。又称非共生固氮作用。
随便看	principal plane of crystal principal plane of photograph principal plane pattern principal planet principal point principal point of photograph principal polarization principal polynomial principal projection property principal punishment principal quantum number principal quintic form principal radius of curvature principal ray principal reduced form principal refractive index principal remainder principal representative principal right ideal principal right ideal ring principal ring principal role performance, additional role performance and double role performance of one character principal root principal root of unity principal scale

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