查询词典 trajectories

We present quantum mechanical vibrational computations beyond the harmonic approximation from effective second order perturbative and variation perturbation treatments defined as static approaches, as well as vibrational analysis from density functional theory molecular dynamics trajectories at 300 and 600 K.

利用超简谐振动近似的有效二阶微扰法(VPT2)和变异微扰法两种静态方法，以及在300和600K下的密度泛函分子动态轨线振动分析方法进行量子力学的振动计算。

Then, based on the semiclassical model and numerical calculation of the Adams-Bashforth-Moulton algorithm, both Cr atom motion trajectories are simulated and the atom-optical properties are analyzed at the same experimental conditions.

根据半经典理论模型，采用Adams-Bashforth-Moulton算法进行数值求解，模拟了同等实验参数条件下的Cr原子运动轨迹，并对其原子光学特性进行分析。

The asymmetric structure of the solar sail is designed. Simulation proves that the structure can make the solar sail attitude to be passive stable on the spiral trajectories.

设计不对称的太阳帆结构，仿真验证了此结构可以用于螺线轨道的太阳帆姿态被动稳定。

The ripple of static trajectories by PPM field is nearly equivalent to the one by solenoidal magnetic field superposing the small wavelet.

利用电子科技大学编写的微波管模拟套装中的3维注-波互作用模块进行了静态轨迹计算，验证了理论推导。

In order to satisfy the material uniformity requirements, optimization algorithms of the three different cases are developed to integrate the trajectories on the intersecting area of two patches. The steepest descent algorithm and pattern search method are adopted to optimize the parameters.

为保证曲面上涂层厚度的均匀性，按照两片交界处喷枪路径的位置关系分三种情况讨论涂层厚度的计算方法和喷枪轨迹优化问题，并采用最速下降法和模式搜索法进行求解。

Free Brownian bridge processes are used to model the propagation trajectories of MPCs in wireless channel,from which the conventional channel impulse response model and the model based on matrix stochastic processes ...

对无线信道的空时特性进行了仿真分析，仿真结果表明，自由布朗桥过程所描述的完全随机的约束环境中，多径分量的波达方向在仰角和水平角维度上显示出一定的局部偏好性。

In the theory of impulsive differential equations, we call the discontinuous trajectories as impulses.

为了简单起见，在这些过程的数学模拟中，人们常常会忽略这个快速变化的持续期间而假设这个过程是通过瞬时突变来完成的。

A portable, muzzleloading cannon used to fire shells at low velocities, short ranges, and high trajectories.Also called trench mortar

迫击炮：-种可移动的、前装式的大炮，用来发射较低速度、近程和高弧形行程的炮弹也作 trench mortar

He was hitting flatter trajectories off both wings, and I noticed a difference in his trademark two-fisted backhand: Back in the day, he let his left hand fly off the handle on his follow-through, now he was prudently keeping both hands on the racquet until the finish.

他在两翼的回球轨迹非常的平，我也注意到他标志性的强力反手击球与以前的一个不同：在以往，他总是在击球时，会让左手自然的从拍柄甩开。但是现在，他会谨慎的将双手紧紧握住球拍直到球被击出。

The principle and trajectory feature of the upper limit control are analyzed,and the rule of upper limit control is presented.Moreover,the depth trajectories for torpedo to enter into the upper limit depth by three control modes during pursuing target are calculated and simulated.

本文分析了上限控制的原理和弹道特点，给出了上限控制基本规律，对鱼雷以跟踪目标进入上限、跟踪保持结束进入上限以及在上限上方跟踪保持结束等3种不同控制方式进入上限的深度弹道进行了数学仿真计算。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。