“砂田”的概念、定义、翻译、参考文献-科学参考

单词	砂田
释义	砂田 Encyclopedia 农学砂田释 gravel-mulched land砂田中国西北干旱地区用砂、石砾覆盖土壤表层以蓄水保墒、提高土温的免耕农田。
随便看	polygonal number polygonal number theorem polygonal patch polygonal spiral polygonal variation polygon area polygonatum root-knot nematode disease polygon-circumscribing constant polygon clipping polygon construction polygon density polygon diagonal polygon diameter polygon division problem polygon edge polygon equivalent by dissection polygon fractal polygon-inscribing constant polygon intersection polygonization polygon mapping polygon of seventeen sides polygonometry polygonous polygon over a monoid

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。