“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。
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