“河湖采砂管理”的概念、定义、翻译、参考文献-科学参考

单词	河湖采砂管理
释义	河湖采砂管理 Encyclopedia 工学河道湖泊管理释 management of sand mining in river & lake河湖采砂管理规范河道、湖泊管理范围内采砂行为的管理工作。
随便看	operator-convex operator cosine function operator-difference operator-differential operator-differential equation operator domain operator endomorphism operator equation operator ergodic theorem operator extension problem operator function operator gene operator grammar operator group operator homomorphism operator ideal operator identity operator index operator inequality operator-irreducible representation operator-isomorphic operator isomorphism operator isomorphy operator loop operator mean

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。