弹道的

On the basis of interior ballistics of gun and relating to the properties of theprojection structure of the pilotchair,the interior ballistic model of the twostem projec-tion structure is investigated in this paper.

该文在枪炮内弹道的基础上，结合航空座椅弹射机构的特点，对两节筒弹射机构的内弹道模型进行了探讨，并对向上弹射和向下弹射均作了考虑，经对几种制式弹的计算，结果都十分理想

A mine obtains its muzzle velocity through the work of high pressure gas in interior trajectory, and keeps moving forward only with inertia in interior trajectory terminal stage with the restriction from submarine torpedo tube.

水雷经内弹道的高压气做功获得一定的出管速度后，在内末弹道阶段其仅在惯性的作用下继续运动，且其运动状态受到潜艇鱼雷发射管的约束。

The factors include the retarded time of torpedo engine starting, torpedo velocity at tube outlet, confined elevator angle and ship rolling angle. Similarity variables were defined for the four factors and values of the variables were determined through combination of experimental data and simulation results.

在舰艇鱼雷发射初期弹道建模与仿真研究中，重点研究鱼雷发动机启动延迟时间、鱼雷出管速度、管制舵角、舰艇横摇角对初期弹道的影响，将该四项因素作为相似元，再根据实航试验数据的袋深与仿真计算结果的袋深求出相似元的值。

To create a mathematical model for the hydro-ballistic trajectory of high speed pellet entering water, the hydro-ballistic trajectory and cavity of sphere and pistol pellets entering water at three oblique angles and six velocities have been experimentally studied using a high-speed digital video recorder.

为了建立高速弹体入水弹道的模型，利用数字式高速录像机实验研究了球形与普通手枪两种弹丸在三个入水角、六种发射速度下斜入水的水中弹道轨迹与空泡。

Model of two-phase flow on the precess of launch of gun for balance is established.

本文针对以固体弹丸为平衡体的平衡炮发射技术进行理论研究，对平衡炮发射过程建立相应的经典内弹道模型与两相流内弹道的物理模型与数学模型，通过数值模拟的方法，对平衡炮发射过程进行了一些研究，主要研究内容如下：(1)建立经典内弹道模型，通过数值计算，分析平衡炮发射过程中的膛内压力分布特征及平衡发射特征。

The 35mm—double—barrelled antiaircraft gun's shell moves uniformly along a line in short time, so that the first kind of trajectory could be gained as a section of line by using our own algorithm for line seeking.

一段弹道得出后，留下最后几点，作为下一个分段弹道的初始段，接着用同样的方法搜索下一段部分弹道，如此逐段地完成整条弹道的搜寻工作。

Based on the optimum quadratic performance index, the optimum guidance law is deduced to make sure the landing velocity and angle of warhead.

用最优设计方法得出程序弹道的最佳控制变量攻角α，保证在程序飞行段末端的弹道倾角θ达到预定要求，并使弹头末端速度达到最大。

The double-color method and theory for stereodisplay of the torpedos trajectory are presented in this article. Program which is using the programming language of Visual C++6.0+MFC+OpenGL has been compiled. In this program, torpedo can be displayed in stereodisplay mode, which can be controlled adapting to the changing of time and space. The final data can easy be simulated and calculated. This method is meaningful to torpedo trajectory design and research.

本文提出了鱼雷弹道双色立体显示技术，系统的介绍了鱼雷弹道立体显示的原理和方法，并采用Visual C++6.0+MFC+OpenGL软件结构编制了相应的程序，使鱼雷最终能够直观的，以图象信息表示出其随时间和空间变化过程，即以立体图象呈现在研究者面前，从而能够更为方便地模拟和计算，对鱼雷弹道的研究和设计具有十分重要的意义。

To investigate the effect of launch parameters on trajectory of electric power torpedo launched by battery activated outside tube, a model of torpedo movement in vertical plane is established, and initial condition is set according to activation condition outside tube. Simulation of the trajectory of electric power torpedo is conducted with Simulink.

为探讨电动力鱼雷动力电池采用管外激活发射时，发射参数对弹道的影响，建立了鱼雷纵平面运动模型，并针对管外激活情形对初始条件进行设定，利用Simulink编程，对横舵管制舵角、动力电池激活时间和鱼雷出管速度取不同值时的弹道进行仿真。

The simulation results also provide a reference to trajectory design for a ramjet powered tactical missile.

弹道的优化研究为以冲压发动机为动力的战术导弹的弹道设计提供了理论参考。

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。