查询词典 trajectory

Terminal-guided projectile ; external trajectory ; trajectory model ; firing data

末制导炮弹；外弹道；弹道模型；射击诸元

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。

In the spline interpolation for well trajectory ,each coordinate of the well trajectory can be indicated as a 3-order spline which variated with well depth.

在计算实钻井眼轨迹的样条插值法中，假设井眼轨迹的每个坐标分量都可以表示成以井深为参数的分段三次样条函数。

Though we have make much progress on it, there remains many problems to study deeply, of which its supporting software system developing is an important and elementary subject of torpedo trajectory research.In this article, we bring forward the double-color method for stereodisplay of the torpedos trajectory.

在鱼雷弹道研究方面已经取得了可喜的成果，但仍不能满足鱼雷事业新发展的要求，需要深入研究的问题还很多，其中鱼雷弹道软件系统的开发仍是鱼雷弹道研究中的一项重要而又基础性的课题。

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。

It is shown that under the same pay load and range, the power requirements of the ultra-low trajectory and classic minimum energy trajectory are close.

计算和分析表明，在相同载荷条件和射程条件下，超低弹道和经典的最小能量弹道对于火箭动力的需求大致相当，射程10000km以上基本相同。

In this thesis, the problems, related with research of automatic and precise homing of parafoil system, were analyzed thoroughly and systematically in method of theoretical analysis and numerical simulation, including dynamics, trajectory design and trajectory following.

本文以&实现翼伞系统自主、准确归航&为中心，采用理论分析与数值仿真相结合的方法，对翼伞系统动力学、航迹规划和跟踪控制问题进行了比较系统深入的研究，得到了若干有意义的结论。

In order to reduce geometric errors between motion trajectory and work piece curve,this paper present a means of controlling trajectory motion law to replace traditional position control.

为了减小刀具运动轨迹与工件几何曲线的误差，提出将传统的位置控制改为物理运动规律控制，即建立数控机床的运动模型，分析被加工轮廓的曲线方程、加工工艺运动要求与刀具加工运动的合成或分解关系，推导出轨迹运动方程组。

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 results show that the rudder angle of torpedo, the battery activation time, and the initial velocity of torpedo all affect the trajectory of torpedo. The rudder angle ought to be set positive when torpedo is launched downwards,or set negative when torpedo is launched upwards to gain perfect trajectory. Meanwhile, shorter battery activation time and higher initial velocity of torpedo are necessary.

结果表明，以上3个参数对鱼雷弹道都有影响，由小深度向大深度发射鱼雷时，横舵管制舵角应设为正值，由大深度向小深度发射鱼雷时，横舵管制舵角应设为负值，并尽量缩短动力电池激活时间，提高鱼雷出管速度，电动力鱼雷管外激活发射可获得较好的弹道。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。