查询词典 ballistic

This paper gives ballistic equation for the suspended projectile under nonstandard conditions, gives parameter correction method for nonstandard trajectory, weather and terrain, establishes a math model for simple and quick solution of firing data, and the paper conducts simulated computation.

给出了悬浮弹非标准条件下的弹道方程组，以及弹道条件、气象条件、地形条件非标准时的有关参数的修正计算方法，建立了一种简单快速求取射击诸元的数学模型并进行了模拟计算。

A theoretical analysis of local damage in a thin ductile tube hit by a flat-nosed missile laterally is developed to predict local failure due to plugging by the beam-on-foundation model. The effect of internal press was considered, and differential equations was obtained which can predict the ballistic speed of the missile which impact the tube filled with water. It can be solved by Runge-Kutta method.

采用地基梁模型对平头弹体侧向冲击钢管的冲塞型破坏模式进行了理论分析，考虑了充压情形下内压的影响，导出了钢管在冲击过程中的运动方程，可以用龙格—库塔法进行数值求解来确定弹体冲击充液压力管道的弹道极限速度。

A rubberized floor and ballistic nylon-material covering on the instrument panel and other interior components reinforces the functional aesthetic.

阿橡胶地板和弹道尼龙材料的仪表板和其他内饰部件加强了功能，包括审美。

The rest of the People's Liberation Army parade, in ironic procession down Beijing's Avenue of Eternal Peace, featured a solemn march of advanced military equipment - 52 brand-new weapons systems ranging from airborne combat vehicles to colossal intercontinental ballistic missiles on mobile launchers - that flowed for two hours amid myriad serried, well-armed, perfectly synchronized, grim-visaged Chinese warriors.

其余的解放军游行，游行中讽刺了北京的大街永久和平，庄严的游行特色的先进军事装备- 52全新的武器系统包括从空降战斗车辆巨大的洲际弹道导弹移动发射平台上-这流出两小时际无数林立，装备精良，完全同步的，严峻，visaged中的战士。

Several nitramine propellants are quenched at different initial pressure(up to 300 MPa)by rapid pressure decay in a small-sized ballistic simulator, which is different from the ordinary vented chamber in that it creats the burning environment of the propellant similar to that gun bore,and that the initial pressure before the extinction are relatively high.

用改进的小型弹道模拟装置，对几种硝胺发射药做了中止燃烧实验，中止压力达300MPa，并对中止燃烧样品做了SEM电镜观察。

The research contents of this subject are mainly: Proposing the overall scheme of the soft firing technology, than confirm the best scheme; On the basis of best scheme , set up the mathematical model of soft firing system, and set up the interior ballistic trajectory calculating model among MATLAB/Simulink, set up soft the three-dimensional dynamics model of firing system among ADAMS; Go on joint simulation, simulating the characteristic curve of bore pressure and the sport law of piston and shot; Through adjusting the parameters such as piston quality、the diameter of unilateral valve、 charge weight、charge form coefficient and the delay time of lighting fire etc to make the soft firing system reach the best state of dropping the composition of forces of gun bore and increasing initial velocity of pill.

论文的研究内容主要是：提出软发射技术总体方案，确定最佳方案；在最佳方案的基础上，建立起软发射系统的数学模型，并在MATLAB/Simulink中建立内弹道计算仿真模型，在ADAMS中建立软发射系统的三维动力学模型；进行联合仿真，模拟膛压特征曲线及活塞和弹丸运动规律；通过对活塞质量、单向阀直径、装药量、药形系数、点火延迟时间等参数进行调整，使软发射系统达到炮膛合力下降、弹丸初速提高的最佳状态。

The results showed that their initial low burning rate characteristics have obvious effect on controlling the pressure waves strength in gun chamber, and can greatly improve the interior ballistic adaptability under pressure endurance environments.

高能硝胺发射药起始缓燃特性具有抑制膛内压力波强度作用，可大大改善其在火炮膛内的受力环境及其应用中的内弹道适应性，对使用安全性都是有利的。

At issue is the density of the Kevlar cloth — woven by SMC — that is attached to the shell of the helmet and provides ballistic protection.

引起争议的是头盔中提供子弹防护的凯夫拉尔面料的密度—由SMC编织而成。

These samples will be used to test the ballistic impact strength of our patented CNT composite materials.

这些样品是用于测试碳纳米管复合材料的弹道冲击强度。

The ONI report states that the JL-2 sea-launched ballistic missile on the Jin SSBNs has a range of ~4,000 nautical miles (~7,400 km)"is capable of reaching the continental United States from Chinese littorals."

ONI报告指出晋级SSBN上的巨浪-2（JL-2）潜射弹道导弹具有射程~4，000海里（~7，400公里）&能够从中国沿海到达美国大陆&。

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。