弹道的

Because the pressure is a key feature of the internal ballistic inside, change curve of the pressure with time can show the circumstance of internal ballistic inside.

最主要的测量对象是压力，因为只有压力能表征内弹道的循环特性，从压力曲线可以得到火药的火药力、压力冲量及火药的燃速等重要参量。

Analysed from 3 respects here disturb gravitation is right ballistic influence, imitate result makes clear, it is the long-range missile of 10000 Km above to cannon-shot, disturb the influence of gravitation can cause those who exceed the 10-5m S-2 of × of placement deviation;5 of 1 Km to disturb gravitation systematization deviation has apparent effect to missile point of fall.

这里从3个方面分析了扰动引力对弹道的影响，模拟结果表明，对于射程为10000 km以上的远程导弹，扰动引力的影响会造成超过1 km的落点偏差；5×10-5m s-2的扰动引力系统性偏差对导弹落点有明显影响。

Ballistic performance s simulative emulation and validation test of a certain projectile shows that the structure of projectile is fit for the needs of exterior ballistic stability,the data jumpiness of dispersion is within the range of normal,the resistance curve s rebounding phenomena is independent of the str.

用外弹道相似性理论和模拟验证试验进行外弹道优化验证是分析研究中大口径炮弹外弹道特性的有效方法之一。

Taking range as the performance function, considering end velocity, height and trajectory slope angle constraints, the optimal glide trajectory was solved by maximum principle of Pontryagin and conjugate-gradient method.

建立了滑翔弹道模型，以射程为指标函数，考虑终端速度、高度和弹道倾角约束，采用庞特里亚金极大值原理和共轭梯度法求出控制变量有约束的最优滑翔弹道，简要分析了滑翔增程机理。

This paper takes one low-speed-circumgyrate rocket with a empennage asa research object, set up a relevant reference frame, analyse the strength andmoment on the amended rocket, ratiocinate the sports equation with 6 DOF; analyse the factors which cause terminal windage between pratical trajectoryand fiducial trajectory, take certain rocket for example, make use of theemluator on the influence of estimating precision caused by measuredinformation, find the speed, the trajectory obliquity, the trajectory setoverand the coordinate are the sensitive factor arosing terminal windage of thetrajectory; introduce the developing status of detecting technique, and basedon the actuality, choose the radar in the ground as measure equipment; simplydesign and analyse the setting and inflame control of the impulse engine onthe amended rocket; design the amend method and validate its feasibility takingthe use of emluator.

本文以某型低速旋转尾翼火箭弹为研究对象，建立了相应的坐标系，详细的分析了作用在弹道修正弹上的力和力矩，由动量定理和动量矩定理推导出了在一般形式下的弹道修正弹的空间六自由度的运动方程；对引起弹道落点偏差的因素进行了分析，以某口径火箭弹为例仿真了可测信息量对估算精度的影响，发现速度大小、弹道倾角、弹道偏角和位置坐标是引起落点偏差的主要因素；对弹道探测技术发展现状作综合性阐述，并基于现状，选用地面火控雷达作为测量装置；对弹道修正弹上脉冲推力器的安装和点火控制方法进行了简要的设计与分析；设计了弹道修正弹指令修正的修正方法，通过数字仿真验证了方法的可行性。

In the condition of definitive structural parameter and part of operative parameter of impulse engine, the effect of controlling force of impulse engine on correct trajectory is analysed. The number of total layer, impulse of each impulse engine and fire interval are determined when the correct ability and flight stability are satisfiable.

在确定了脉冲发动机的结构参数和部分工作参数的情况下，分析了脉冲发动机控制力对修正弹道的影响能力，确定了在满足修正能力及飞行稳定性的条件下脉冲发动机的总层数、单冲和点火间隔。

In the study process of some kinds of AAM, the simulations of radio amendatory channel have to be carried out in different trajectories in order to validate the capability of radio amendatory channel and calculate the maximum distance that missile can overshoot.

在某型号空空导弹研制过程中，需要对不同攻击弹道的情况下对数据链的遮挡效应进行仿真，以分析导弹无线电修正通道的工作效能，确定改进方案，计算导弹的最大攻击距离。

To compare the performance with PN, the trajectory simulation is carried out, and the results show that the new guidance law provides significant performance improvements over the commonly used classical proportional navigation law, the load distribution among the trajectory is reasonable and favorable for the hand-over between the mid-course phase and the terminal phase.

在以上内容的基础上，建立了拦截弹末制导有关的六自由度数学模型和仿真模型，对不同初始条件下拦截飞机和战术弹道导弹进行了数字仿真，分析了拦截高速弹头时弹道的新特点，并采用蒙特卡洛法分析了不同误差因素作用下的制导精度。

February 15, 1996, the Long Route B first launch to the International Telecommunications Satellite 708, Rockets 22 seconds after take-off attitude out of control, fully loaded with fuel into the rocket launch tower from 1850 m on the slopes, the location of the explosion just in the space program Technical personnel living quarters near the strong blast destroyed the moment the steel and concrete construction, was killed 6 people and injuring 57 people, a rocket designed specifically for the flight trajectory, a senior engineer at the expense of on the spot.

1996年2月15日，长征三号乙首飞发射国际通信卫星708，火箭起飞22秒以后姿态失控，满载燃料的火箭撞向距发射塔架1850米的山坡上，爆炸的地点正好在航天工程技术人员住的宿舍附近，强烈的气浪瞬间冲垮了钢筋水泥的建筑，死亡6人、伤57人，一位专为火箭设计飞行弹道的高级工程师当场牺牲。

In real terms, this means that the 6.8mm SPC has the same relative trajectory as the 5.56mm (which allows for the M468 to be fired and treated essentially like a 5.56mm M-16), but with 50% more stopping power, and a bullet speed of 2650 feet per second from a sixteen and one-half inch barrel, delivering 1715 foot-pounds of energy, with a six hundred meter effective range.

这意味着6.8毫米SPC彈藥在保持与5.56毫米彈藥相对相同的弹道的同时却拥有多出50%的停滞能量，而这样一枚弹丸由一根16英寸半长的枪管中射出时，秒速高达2650英尺，释放1715尺磅能量，并且其有效射程可达到600米（如果M468可以在基本上像M-16一样射击、处理5.56毫米枪弹以作为对比的话）。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。