由于身管后坐复进运动中支撑定向情况的不同，对火炮的射击密集度产生的影响也不相同。
Because of support directional situation of barrel recoil and counter-recoil is different, so influence on gun fire dispersion is different.
定向器束在发射状态下的振动特性能够反映发射系统动态性能和结构的合理性，并且会影响火箭、导弹武器系统的射击精度。
The vibration characteristic of launch tube in launching state can reflect the dynamic performance and the structural rationality of launch system, and it will influence the shooting precision.
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