... diameter of projectile 弹径 dispersion of projectile 弹丸散布 drift of the projectile 定偏量 ...
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在弹道末端，由于弹道降与弹丸散布的存在，用雷达和天幕靶测速装置测试弹丸飞行速度误差很大。
For the fall of trajectory and the scatter of projectiles, there is larger error between the true value and the measured data by radar or Sky Screens.
为满足弹道散布范围大或大口径弹丸的测速场合，提出了一种原向反射式激光光幕测速的方法。
A novel laser screen method with retroreflector for velocity measurement is introduced for some special velocity measuring occasions like wide spreading range or large caliber projectiles.
可用于确定内膛弯曲度、身管热变形、弹丸偏心率、内弹道诸元和身管结构等对射弹散布的影响。
It may be used to determine the effects of bore curvature thermal deflection of the tube eccentricity of the projectile interior ballistics data and construction of gun tube on dispersion error.
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