“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	aircraft part assembly aircraft patrol aircraft performance test of radar absorbing material aircraft physical mock-up aircraft piston engine aircraft pneumatic actuation system aircraft pod structure aircraft poststall control aircraft power distribution system aircraft powered effect test in wind tunnel aircraft powerplant aircraft preliminary system safety assessment aircraft pressure test in wind tunnel aircraft prognostics and health management system aircraft propeller structure aircraft propulsion system aircraft propulsion system test aircraft radome structure aircraft range aircraft reliability enhancement test aircraft reliability growth test aircraft reliability simulation test aircraft reliability test for production acceptance aircraft reliability test for qualification acceptance aircraft residual risk

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