jet velocity attenuation coefficient 射流速度降低系数
velocity attenuation coefficient 速度衰减系数
coefficient of velocity attenuation 速度衰减系数
velocity and attenuation 速度和衰减的
attenuation velocity 衰减速度
Ultrasonic velocity and attenuation 超声声速与衰减
propagation velocity and attenuation 传播速度和衰减
By combining theory analysis with test measurement, the velocity attenuation regularity of projectile fragments was discussed.
采用理论分析和试验测试相结合的方法，对弹丸破片的速度衰减规律进行了研究。
After measuring the velocities of many fragments and the flying Angle, the coefficient of velocity attenuation can be calculated.
可以通过测量多个破片的飞行速度与飞行姿态角，推导出速度衰减系数。
The initial cavity, ballistic trajectory and velocity attenuation of the sphere pellets are similar at different water-entry angles and initial velocities.
在一定的入水角与速度范围内，球形弹丸入水初期弹道的空泡特性、弹道轨迹以及速度衰减规律具有一定的相似性。
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