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This Dictionary of Oil Sector related terms is sponsored by: 
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Showing definitions 81 to 85 of 85 for the letter 'a'
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- Aviation turbine kerosene (ATK)
- A medium-Iight fuel burned in jet and turbo-prop aircraft engines.
- Azimuth
- A horizontal angle reckoned clockwise from the meridian. The horizontal direction of a celestial point from a terrestrial point, expressed as the angular distance from a reference direction. It is usually measured from 000 degrees at the reference direction clockwise through 360 degrees. An azimuth is often designated as true, magnetic, compass, grid, or relative as the reference direction is true, magnetic, , compass, or grid north, or heading, respectively.
- Azimuth grid
- The angle in the plane of projection between a straight line and the Y axis of a plane-rectangle coordinate system.
- Azimuth magnetic
- At the point of observation, the angle between the vertical plane through the observed object and the vertical plane in which a freely suspended symmetrically magnetised needle, influenced by no transient artificial magnetic disturbance, will come to rest.
- Azimuth true
- Azimuth relative to true north.
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| Pages for the letter 'a':
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