“three lines and four districts”的概念、定义、翻译、参考文献-科学参考

单词	three lines and four districts
释义	three lines and four districts Encyclopedia 农学三线四区释 three lines and four districts三线四区 “三线”包括城市开发边界、永久基本农田红线和生态保护红线。“四区”为“三界四区”的简称，主要指允许建设区、有条件建设区、禁止建设区和限制建设区。
随便看	structure of the nervous system structure of the upper atmosphere structure of tilth structure of tourism industry structure of trajectories structure of vocational education structure of vortex line structure of wing-body combination structure on a manifold structure operation and maintenance management structure optimization structure prediction by random search structure prediction of membrane protein structure-preserving structure preserving algorithm structure-preserving algorithm structure problem structure property structure property correlation structure-property correlation structure query language structure query language, SQL structure query language ？ structure refinement structure relaxation

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