11. Rotation about the horizontal axis varies the altitude ( angle of elevation ) of the pointing direction. 12. The angles of elevation and depression for the anti-tank gun are + 15?and " 5?respectively. 13. During the six-month " day ", the angle of elevation of the Sun above the horizon varies continuously. 14. The antenna device scans by an electronically controlled beam in azimuth and angle of elevation in sectors not smaller than 60? 15. The CM60A1 could be fired at a very low angle of elevation , giving it the dual purpose of direct fire artillery. 16. The area that runs from north to south has a relatively steep topography at an angle of elevation of approximately 40 %. 17. The " Sky Stairs " is another famous scenic spot with a precipitous stair whose angle of elevation is 70 to 80 degrees. 18. As with the previous 5-inch 25 caliber guns, they were hand-loaded but power-rammed for a high rate of fire at any angle of elevation . 19. If we look at the diagram, each angle of elevation or PPI has data at height X at a certain distance from the radar. 20. They had a high rate of fire due to their being hand-loaded but power-rammed and their capability for easy loading at any angle of elevation .
