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| obstacle clearance altitude (Leonid Dzhepko); obstacle clearance height (Leonid Dzhepko); obstacle clearance limit (Leonid Dzhepko) | |||
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| minimum obstacle clearance altitude (The altitude above sea level (ASL) between specified fixes on airways or air routes that meets the IFR obstacle clearance requirements for the route segment in question, MOCA Alexander Demidov); minimum obstacle clearance altitude (The altitude above sea level (ASL) between specified fixes on airways or air routes that meets the IFR obstacle clearance requirements for the route segment in question, MOCA Alexander Demidov) | |||
| минимальная безопасная высота пролёта препятствий: 2 phrases in 1 subject |
| Military | 2 |