The main points are as follows:The interior ballistic experiments of rocket shell launching are conducted and the experimental data, including the pressure at the wall of rocket launching tube and the initial velocity of rocket shell, are obtained.
主要内容如下：1进行了火箭弹发射的内弹道试验，测量得到了发射管壁面处的压力时间曲线、弹丸的炮口初速。
JS 12.7mm sniper rifles capable of launching 84 tungsten-type heart 12.7mm armor piercing shell, the shell warhead quality 28g, the diameter of tungsten alloy shells Heart 8mm, a mass of 22.5g, muzzle velocity 1150m/s, chamber pressure 324MPa, 1000m distance can be run through the thickness of 45 ° tilt of 15mm steel plate.
JS 12.7mm狙击步枪可发射84式12.7mm钨心脱壳穿甲弹，该弹弹头质量28g，钨合金弹心直径8mm，质量为22.5g，初速1150m/s，膛压324MPa，1000m距离上可贯穿厚度15mm倾斜45°的合金钢板。
On the basis of the analyzing the whole launching process, the mathematics model of the inner ballistic is deduced. Computer procedure is complied through Visual C++ development tools, which simulate the launching process and obtain the main performance curve of inner ballistic trajectory. Mathematics model is also modified through the experimentation data. At the same time, the experiment has proved that the new launching technique has the capability of raising the muzzle velocity.
在此基础上，本文针对提出的辅助药室火炮结构建立了再生式液体发射药辅助药室火炮发射过程的零维数学模型，并利用VC++开发工具编制了计算机程序，对整个发射过程进行了模拟，得到了内弹道的主要性能曲线。
The results show that it is possible to apply the vertical launching techniques to the intercepting low altitude, short range or skimming targets with velocity.
结果表明：将垂直发射技术应用于对付近程、高速、掠海目标是有效的，可以实现的。
By analyzing mechanism of the influence of ship motion on carrier launching, the vertical component of exit velocity is treated as a key parameter for evaluating launching safety.
通过分析航母运动对舰载机起飞的影响机理，选择飞机离舰爬升率作为评价起飞安全性的关键参数；
In this paper, the third cosmic velocity i. e., the smallest velocity needed for launching an object from the earth into the space out of the solar system, is found to be 13.8km/s, quite different from 16.7km/s given in some traditional text books.
本文计算出从地球上发射物体使其能飞出太阳系所需的最小速度，即第三宇宙速度，为13.8km/s，与一些传统教科书中给出的16.7km/s有较大的差异。
According to the high demand of modern war to the viability of missilery weapons, the enhancement of launching pad leveling precision and velocity accounts for great significance. A new all-purpose hydraulic control system was designed based on the study of the general leveling principle.
为了提高导弹发射台调平的精度和速度，笔者在对一般性的调平原理进行研究的基础上，设计了一种通用的发射台调平液压控制系统；
The consistence of muzzle velocity of solid armature is applied to characterize the stability of launching system.
固体电枢初速的稳定性和一致性是表征发射系统稳定性的重要指标。
VSP microlog is a work, launching investigation and study to surface construction by using seismic excitation wells to provide a model of near-surface accurate velocity and thickness for roll-along designing excitation well depth, enhancing the stability of exciting wavelet, and precisely obtaining static correction quantity.
VSP微测井是利用地震生产激发井开展表层结构调查研究工作，为逐点设计激发井深、提高激发子波的稳定性、精确求取静校正量提供准确的近地表速度、厚度模型。
First, proper way of GPS positioning are selected according to the high dynamic flight characters of re-entry spacecrafts, such as high distance from the earth, high velocity and far awy from the launching point.
本文首先根据再入航天器飞行高度高、速度快、飞行距离远等特点，对GPS定位方式进行选择。
In this paper, the third cosmic velocity i.e., the smallest velocity needed for launching an object from the earth into the space out of the solar system, is found to be 13.8km / s, quite different from 16.7km/s given in some traditional text books.
本文计算出从地球上发射物体使其能飞出太阳系所需的最小速度，即第三宇宙速度，为13.8km/s，与一些传统教科书中给出的16.7km/s有较大的差异。