“airport clearance zone”的概念、定义、翻译、参考文献-科学参考

单词	airport clearance zone
释义	airport clearance zone Encyclopedia 工学机场环境释 airport clearance zone机场净空区为保证飞机起飞、着陆和复飞的安全，在机场周围划定的限制障碍物高度的空间区域。
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