炮弹引信炮口保险距离设计指标不但与弹丸威力有关，还涉及弹丸初速。
And the design requirements of the muzzle safe distance of the projectile fuze are concerned with not only the power of the projectile, but also its muzzle velocity.
在满足最大膛压的约束下，提高弹丸初速始终是内弹道研究设计者的目标。
Improving the muzzle velocity of projectile based on the restriction of the maximum bore pressure is the interior ballistic devisers goal all the time.
时间引信的精度取决于多种因素，但弹丸初速是决定弹丸飞行特性的主要参数。
The precision of time fuze rests with many factors, but the muzzle velocity of a projectile is a key parameter which decides on flight characteristic of a projectile.
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