SCIENCE|natural and applied sciences|earth sciences · TRANSPORT|air and space transport|air transport
- dóiléire sléibhe Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
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- mountain obscuration | MT OBSC | MTOS
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- Definition meteorological area forecast element to indicate that visibility and mountaintops are obscured by clouds Reference "COM-HU based on:Traffic Flow Management Learning Center, US > Section 5. Potential Flight Hazards, http://tfmlearning.fly.faa.gov/publications/atpubs/aim/Chap7/aim0705.html [12.7.2016]"