quadrant elevationとは意味:射角{しゃかく} quadrant elevation meaning:[Defence] (*) The 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, angle of site, and complementary angle ...quadrant elevation en francais:quadrant d'élévation (angle où l'on place les armes balistiques pour atteindre la cible)