“Three-North Shelterbelt Program”的概念、定义、翻译、参考文献-科学参考

单词	Three-North Shelterbelt Program
释义	Three-North Shelterbelt Program Encyclopedia 农学荒漠化治理释 Three-North Shelterbelt Program“三北”防护林工程在中国西北、华北、东北地区由政府批准实施的一项防护林建设工程。
随便看	topological function theory topological functor topological generator topological geometry topological G-module topological graph topological graph theory topological group topological groupoid topological homeomorphism topological homomorphism topological identification topological immersion topological incidence structure topological index topological insulator topological interpretation topological invariance topological invariant topological isomorphism topological isotopy topological kernel topological knot topological K-theory topological lattice

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。