clearance diagram
... clearance certificate 结关证书 clearance diagram 净空图 clearance fit 间隙配合 ...
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机场净空图 airport obstruction charts
·2,447,543篇论文数据，部分数据来源于NoteExpress
机场净空限制面及障碍物位置图，是了解掌握限制面和障碍物关系的专业地图。
Map of airport clearance limit and obstacle location serves as a special one to understand and promote the relation between clearance limits and obstacles.
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