“土壤耕作”的概念、定义、翻译、参考文献-科学参考

单词	土壤耕作
释义	土壤耕作 Encyclopedia 农学土壤耕作释 soil tillage土壤耕作运用农机具机械力改变土壤耕作层的结构、厚度、表面状况，以调节耕层土壤水、肥、气、热、生物状态，为作物播种、出苗和生长发育提供适宜土壤环境的一系列技术措施。
随便看	sheaf cohomology sheaf homomorphism sheafication sheaf isomorphism sheaf model sheaf of Abelian groups sheaf of circles sheaf of complexes sheaf of curves sheaf of differential operators sheaf of differentials sheaf of finite type sheaf of functions sheaf of germs sheaf of germs of analytic fanction sheaf of germs of divisors sheaf of germs of functions sheaf of groups sheaf of hyperfunctions sheaf of ideals sheaf of lines sheaf of meromorphic functions sheaf of modules sheaf of parallel lines sheaf of planes

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