1.At first, choosing suitable Disperse Model to describe the Lagrangian simulation model, and using optimum method of Stochastic Trajectory Model to simulate influence of Saffman lift force and turbulence impulse to sand saltation trajectory.
本文首先从所要研究的实际问题出发,比较了两种研究风沙动力学的模型,选择描述风沙动力学的离散相拉格朗日模型作为数值模拟模型,采用其中优化方法—随机轨道模型(Stochastic Trajectory Model)进行跃移沙粒轨迹数值模拟。
2.On the basis of solving ballistic equation in real-time, the authors solved the unified calculation problem of non-flat trajectory comprehensive coefficient under the condition of strong constraint ,found the estimating method of flat trajectory comprehensive coefficient, carried out the generalized design of solving trajectory model in real-time, and given a program flawchart.
摘要根据基于弹道方程的实时解算算法，解决了强约束条件下非低伸弹种弹道综合系数的统一计算问题，找出低伸弹种弹道综合系数的估计方法，进行了弹道实时解算模型的通用化设计，给出了程序流程并进行了测试。
3.A series of tech niques such as technique of deviation prevention and verticality keeping of the vertical bore hole segment, technique of control wellbore trajectory in the inclined portion with power tool or rotary table, technique of control of trajectory in the horizontal section with rotary table combined with DTL guide tool and PDC bit, technique of wellbore trajectory prediction with computer, technique of drilling fluid and technique of well completion were recommended with emphasis in the paper.
文中介绍了优化并身结构和优化井眼剖面设计，着重加绍了直井段防科打直技术，造科段以动力钻具为主和以转盘钻为主的开眼轨迹控制技术，水平段以转盘钻配DTU导向钻具和PDC钻头为主的开眼轨迹控制技术，利用计算机预测井眼轨迹控制技术，钻井液和完井技术以及通过施工得到的几声、认识。
4.electro-production show that the dependence of the differential cross section on virtual photon virtuality, Q~2, is of moderation, the change of the energy scale parameter S_0 causes moderate effect on the differential cross section, and the linear trajectory is a good approximation to non-linearity of the Pomeron trajectory, in particular, at small momentum transfer region | t |< 0.2GeV~2.
同时,圣电生的理论预测表明:微分截面对虚光子的虚度Q~2和能标s_0变化的依赖是中等程度的,线性坡密子轨迹是非线性轨迹的一个好的近似,特别是在动量转移(|t|≤0.2GeV~2)的区域。
5.In this paper,the author presents an algorithm to detect the trajectory and impact point of tactical ballistic missile by the measuring data of ground warning radar, and the initial attempt is made for the work to predict the trajectory and impact point of tactical ballistic missile by the measuring data processing of radar. The research results in this paper will be valuable to research the operations theory of ATBM.
给出了利用地基预警雷达的测量数据预报战术弹道导弹 (TBM)弹道和落点的方法 ,对应用雷达测量数据预报战术弹道导弹弹道和落点的数据处理工作作了初步偿试 ,对反战术弹道导弹(ATBM)作战理论研究具有一定的参考价值。
6.This algorithm is appropriate to PTP trajectory and CP trajectory.
这种算法对于PTP运动和沿CP运动都是适用的。
7.Abstract: This paper introduces briefly the control principle of trajactory correction technique and analyzes the structures and application areas of several typical trajectory correction mechanisms such as paddle type ring and D-ring etc.Moreover,it makes the aerodynamics simulation and dynamics simulation of trajectory correction mechanism as paddle type damping ring.The simulation result proves the correctness and feasibility of the design.
文摘:简要介绍了弹道修正技术的控制原理；分析了桨式、D型环等几种典型弹道修正装置的结构特点和应用范围；并对其中的桨式阻尼环弹道修正装置分别进行了空气动力学仿真和运动学仿真，验证了设计的可行性和正确性。
8.Analyzing the widely adopted independent and simply interconnected trajectory test model of homing weapon, a new integrated trajectory test model is put forward.
在分析目前普遍采用的武器弹道离散测试和简单互连测试模式缺陷的基础上,提出了一种新的靶场弹道集成测试模式——制导武器弹道综合测试模式,阐述了新型测试模式的概念、技术内涵和优越性。
9.Some give a high trajectory and short roll while others a low trajectory and long roll.
一些高尔夫球，飞行的弹道高，滚动的距离短；其它一些高尔夫球，飞行的弹道低，滚动的距离长。
10.Results:The atlanto-occipital transarticular screw trajectory was cephalad tilting in sagittal plane and medially tilting in coronal plane; the ideal angle of the trajectory was(53.3±3.4)°upper tilting in sagittal plane and(20.0±2.6)°midline tilting in coronary plane.
结果:寰枕关节经关节螺钉固定的钉道理想角度为:螺钉方向在矢状面的上倾角为(53.3±3.4)°,在冠状面的内倾角为(20.0±2.6)°。
