Artillery backlash angle is an important factor in firing accuracy. It is necessary to study the law of the change of the backlash angle in order to master the dynamic error of artillery rotating parts in the high and low direction. The vibration equation of backlash angle was deduced based on the force analysis of the rotating parts. https://clgrsuj3yfh3j.bloginwi.com/68599010/mouth-voix-et-lieux-du-pouvoir-dans-norma-rae-de-martin-ritt-1979