By angling the barrel and changing the propellant charge used, howitzers have an impressive flexibility in shell trajectories. 通过更换射角和装药号,榴弹炮体现出令人惊异的弹道灵活性。
The network of lines now conforms closely with a regular system of stress trajectories. 这些线所形成的网络与规则的主应力迹线族密切吻合。
On recent trajectories, this implies that Europe overtook the US in 2007. 按照最近的发展轨迹,这意味着欧洲在2007年已超越美国。
We will, with great success, analyze these trajectories by decomposing this very complicated motion. 通过分解复杂运动,我可以有非常成功地,可以分析它的轨迹。
These properties can be utilized to obtain spacecraft trajectories that have less fuel consumption in the mission design process. 充分利用这些相流的特性,可用来指导深空探测器的轨道设计,得到能量消耗更少的探测器飞行轨道。
Now comes my last part, and that is, how does air drag influence trajectories? 现在是最后一部分,就是,空气阻力如何影响轨道?
In this paper, we propose a technique for removing outliers based on the knowledge that correct trajectories are constrained to be in a subspace of their domain. 在本文中,我们提出一种技术用于去除野值的基础上在对知识,正确的轨迹约束的在他们的网域的子空间的。
While some size up trade balances and growth trajectories, others are measuring missile ranges and comparing military parades. 有些人在比较两国的贸易额和增长轨迹,其他人则在计算导弹射程,对比阅兵的声势。
Trajectories, thank goodness, are almost never three-dimensional. 轨迹,感谢上帝,基本上永远不是三维的。
Reentry Trajectories Simulation of Sub-orbital Flight Vehicle in Atmospheric Environment 大气环境中的亚轨道飞行器再入轨迹仿真
This paper studies the best one impulse transfer between two coplanar and confocal elliptic trajectories and its application. 讨论了平面情况时两个共焦的椭圆轨道之间的最佳单冲击过渡及其意义。
The proposed analytical gradient matrix algorithm is validated by finding fuel-optimal Earth to Mars trajectories that use low-thrust engine. 以地球-火星的燃料最省微推进转移为例对所提解析梯度方法进行了仿真验证。
In this paper the trajectories of ions born in Titan's exosphere are simulated through a simple model. 本文将通过一个简单的模型来模拟在土卫六外逸层中产生的离子轨迹。
In contrast to other algorithms, this method is able to derive explicit formulas to compute paths and generate path trajectories on all offset surfaces for final component forming. 与其他方法相比较,该算法推导出了明确统一的路径公式,可用于生成铺丝轨迹;由于是基于多层曲面上的路径生成,因此可用于构件的最终成型。
The relative growth trajectories favour Asia rather than Europe and the US. 他表示:相关的增长轨迹更有利于亚洲,而非欧洲和美国。
This paper presents a efficient algorithm to mine frequent movement patterns, which is the set of the frequent trajectories of moving objects. 本文提出了一种挖掘频繁运动模式即移动对象运动轨迹中所有频繁轨迹集合的高效算法。
In the space program the theory is used to determine spaceship trajectories. 在空间计划中,这个理论用于确定飞船的轨道。
Different branches interact with each other, and can change the motion trajectories of the investigated points. 不同枝条之间存在相互的影响,并能改变考察点的运动轨迹。
In order to satisfy the online trajectory prediction of multi-machine system, polymerization technology of trajectories was used to reduce the computing burden. 为了满足实际多机系统在线轨迹预测的要求,引入轨迹聚合技术对多机轨迹进行聚合,进一步减少了计算量。
The bullet trajectories and the hostages'wounds showed that all the victims were not kill by the hostage-taker. 他进一步解释说,通过子弹的弹道和人质的受伤情况可以判断,遇难者可能并不都是劫持者所杀。
Many feature tracking algorithms have been proposed for motion segmentation, but the resulting trajectories are not necessarily correct. 许多特征跟踪算法已被提出为运动分割,但由此而轨迹不一定是正确的。
To answer this question, we need to plot trajectories of principal stresses. 为了回答这个问题,我们尚须画出主应力迹线图。
In order to obtain the supports of trajectories, this algorithm uses a intermediate variable called trajectory id list and computes the intersection of them. 算法使用了称为轨迹标识列表的中间量,通过对列表元素的交集来计算轨迹的支持度。
And then an adaptive neural network control scheme of space manipulator system with unknown parameters to track desired trajectories in joint space is developed. 然后,针对空间机械臂所有参数未知的情况下,设计了载体位置与姿态均不受控的空间机械臂系统关节轨迹跟踪的自适应神经网络控制方案。
Knowledge chain's collaborative innovation has advantage in the formation of technological trajectories. 知识链组织合作创新具有技术轨道的形成优势。
But their subsequent growth trajectories have changed the situation materially. 但它们随后的增长轨迹实质性地改变了这种局面。
Using these equations, we can accurately calculate the coordinates of any point in the directional welt trajectories. 利用这些方程可以精确地计算三维定向井轨迹上任一点的空间位置。
Genetic algorithm is applied to determine the optimal trajectories from take-off to war zone, then contrast it with the classical trajectory. 采用改进了的遗传算法,求解了无人机从起飞到达目标区的最优航迹,并与传统的飞行方式作了比较。
We shall seek the optimal control and corresponding trajectories of the singularly perturbed nonlinear state regulator problem. 我们将寻求最优控制和奇摄动非线性状态调节器问题的相应轨道。
Interpolating algorithm in Descartes coordinate system is investigated and the results about the cutter trajectories produced by two different interpolating methods are given. 研究了笛卡儿空间的插补算法,并比较了两种不同方法所产生的不同刀具插补轨迹。