“养地制度”的概念、定义、翻译、参考文献-科学参考

单词	养地制度
释义	养地制度 Encyclopedia 农学养地制度释 soil nourishing system养地制度与种植制度相适应的以提高耕地利用率和生产力为主要内容、以恢复和培育土壤地力为中心的一系列技术措施体系的总称。
随便看	second cosmic velocity second countability axiom second countable space second countable topological space second Cousin problem Second creation second critical magnetic field second cultivated machinery second curvature second demographic transition second derivative second derivative test second derivative test discriminant second development second difference second differential second differential parameter second differentiator second distance second dual second dual module second dual space second economics adjustment of China second eigenfunction second electron emission

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。