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。

youdao

Finally, we compare six degrees of freedom simulation results of ballistic re-entry missiles motion with the computing results of approximate formula. The comparison shows the feasibility...

最后用六自由度弹道数字仿真结果同近似计算结果作了比较，比较结果表明了近似分析的可行性。

youdao

Our negotiators propose to differentiate between strategic and theater ballistic missiles by the re-entry velocities of their warheads.

CENTERFORSECURITYPOLICY: Multilateral madness

Also within the next decade, one can expect that theater ballistic missiles will be capable of deploying decoys and maneuverable re-entry vehicles.

CENTERFORSECURITYPOLICY: Multilateral madness