THE APPARENT MEAN DISPERSION of a salvo in range (or deflection) is the arithmetical average of the dispersion in range (or deflection) of the several shots of the salvo, excluding wild shots.

• 可视平均散布一群齐射弹的射距（或射向）散布是数群齐射弹的射距（或射向）散布的算术平均值。