弹道的

In this paper, a space model of antisubmarine homing torpedo's trajectory has been established based on the surface warship attacking underwater target, a formula which can be used to calculate the trajectory length of antisubmarine horning torpedo is also given.

在建立了水面舰艇发射反潜自导鱼雷攻击水下目标的空间弹道模型的基础上，提出了反潜自导鱼雷全弹道长度的一种计算公式。

The trajectory of antisubmarine homing torpedo is a complex space curve, so there is big limitation in accounting its trajectory length by plane geometry.

由于反潜自导鱼雷的弹道是一条复杂的空间曲线，因而平面几何解析法求解其弹道长度有较大的局限性。

The optimization result shows that the maximal attack area is an ellipse of 17 km half long axis and 10 km half short axis, and it is better than the conclusion of a lot of simulation researches aiming at this warhead, and it can offer reference for further design of reentry trajectory.

优化结果表明，最大可攻击区范围是一个长半轴为17 km，短半轴为10 km的椭圆区域，此结果优于针对该弹头进行的大量弹道仿真所得的结论，可为进一步弹道设计提供参考依据。

And introduces the structure and operational principle of QLZ87AGL made in china which has been armed by our army. Based on the classical interior ballistics and weapon gas dynamics theory, a mathematics model of the interior ballistics and gas system is established.

运用经典内弹道、武器气体动力学和自动武器系统动力学理论建立了榴弹发射器在发射过程中的内弹道、后效期、导气装置的气体动力学模型和机构二自由度的动力学模型。

Information from the subsystem of the integrated navigation system is syncretized by Kalman filter, which can output higher precision navigation information.

根据超远程炮弹的弹道特点，进行了初始对准的误差分配，完成了全弹道组合导航系统仿真计算。

According to the trajectory specialty of ERGS, this paper distributed the initial alignment errors and simulated the whole trajectory of the integrated navigation system.

根据超远程炮弹的弹道特点，进行了初始对准的误差分配，完成了全弹道组合导航系统仿真计算。

Secondly, we study on the structures of the trajectories, system errors, random errors and weight matrice respectively, construct a reduced parameter model for TTD fusion, and give a criterion for selecting the measurement units.

二是分别研究了弹道、系统误差、随机误差、权矩阵的结构，构造了外弹道跟踪数据融合的节省参数模型，给出了测元遴选准则。

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。

The zero-dimensional interior ballistic mathematical model is established to analyze the process of the technology.

对二次发射过程的弹道设计和装药设计进行了讨论，建立了二次发射过程的内弹道零维模型，并对二次发射过程进行数值模拟。

The exterior ballistic model have an important guidance on shell design and parameter matching research of this type projectile.

所建外弹道模型对该类弹丸的初步设计和弹道参数匹配研究具有重要的指导意义。

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。