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sigh007 发表于 2012-3-24 11:02:58

MIL-HDBK-1021-1

                   <p>MIL-HDBK-1021/1, MILITARY HANDBOOK, AIRFIELD GEOMETRIC DESIGN (29 JUN 1990) ., This section includes general information and factors to be considered in the orientation of runways.</p>         
         

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