Англо-русский политехнический словарь

QUADRANT ELEVATION

1. quadrant elevation—quadrant elevation translationThe angle between the horizontal plane and the axis of the bore when the weapon is laid. DOD only It is the algebraic sum of the elevation a...Military dictionary
2. quadrant elevation—угол возвышения...Англо-русский словарь по космонавтике

• QUADRANT ARM
• QUADRANTAL ANGLE