| 11. | The elevation angle has to be modified to take into account the bending effect.
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| 12. | The polar angle is often replaced by the "'elevation angle "'measured from the reference plane.
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| 13. | The maximum elevation angle of the ZiS-3 was the highest of all Soviet self-propelled guns.
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| 14. | The nominal elevation angle for this case is-0.5 degree.
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| 15. | The carriage, or mounting, also enabled the barrel to be set at the required elevation angle.
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| 16. | The gun had high elevation angle and could be quickly dismantled for transporting by pack horses.
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| 17. | Elevation angle of zero is at the horizon.
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| 18. | Laying in the vertical plane ( elevation angle ) uses data derived from trials or empirical experience.
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| 19. | These antennas are used to form an interferometer receiving array that measures the elevation angle of echoes.
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| 20. | Accurate azimuth and elevation angle of attack ( AOA ) information can be another very important requirement.
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