运动学

The kinematics of helicopters in loop and roll maneuvers is analysed in this paper.

本文对筋斗和横滚机动飞行的运动学问题进行了分析。

Simulations show that the method can quickly obtain precised and optimized inverse kinematics solutions.

仿真算例表明，该方法能快速求出精确和优化的运动学逆解。

In Hebei normal university, it has been applied in daily training of shot putters and it gets high praise.

参数数据库采用三层表结构记录运动学和动力学参数数据。

In this study 3-D cinematography was used in official competitions and the kinematic data of 155 trials from 31 chinese toplevel female shot putters were obtained.

以我国女子铅球项目为突破口，使用三维摄影测量方法收集到大样本量的优秀运动员比赛资料和运动学数据（31人，155例）。

He transgresses the distinctions between art, science and technology by his unique talents,and creates a series of poetic architectures that merge structure and movement.

他以其独有的设计天赋，超越了艺术，科学和技术间的彼此差异，创造出了一系列融合了结构学与运动学的诗意的建筑形态。

The influences of the structural and movement parameters of the arc-track-type flexible holding and conveying mechanism and the sugarcane stalks geometric parameters on the conditions of sugarcane stalks outward windrowing, windrowing angle and distance were analyzed.

对甘蔗在夹持输送终点抛出后和着地时的运动学进行了理论分析，并建立了数学模型，推导出了甘蔗向外铺放的条件，以及甘蔗铺放距离、铺放角的理论计算公式，分析了圆弧轨道式柔性夹持输送装置结构参数、运动参数、甘蔗几何参数对甘蔗向外铺放、铺放距离、铺放角的相互影响规律；对甘蔗在夹持输送过程中的受力情况进行了理论分析，建立了甘蔗在夹持输送装置中所需最小夹持力模型，以及甘蔗质心距柔性夹持元件上端最大距离模型。

In our models, the simulated absorption lines already include kinematics informations of the absorbing clouds, which can be easily used to compare with observations and set constrains on the models.

我们的模型已经包括了吸收气体的运动学信息，可以利用起来与观测进行比较，对模型做进一步的限制。

In the modeling of flight simulation, a six-degree-of-freedom whole non-linear equation and wind-tunnel tests data of MAV are used, the propeller twist and induced air flow on MAV are took into account.

在飞行动力学和运动学仿真中，采用了六自由度全量非线性方程，以微型飞行器的风洞吹风实验数据为依据，考虑了螺旋桨的气动扭矩、陀螺力矩和尾流对微型飞行器的影响，精确地反映了微型飞行器的实际运动特性。

The effects of jet interaction on forces and moments are described by interaction amplification factor, and the algorithm to calculate the interaction amplification factor is presented, then the motion model and the dynamics model of interceptor are established according to the previous analysis.

根据大量参考文献的结论，分析了侧向喷流射入拦截弹外流的流场特征，以干扰放大因子来描述干扰效应对力和力矩的影响，给出了放大因子的计算方法，进一步建立了喷流侧向力和空气动力作用下的导弹运动学和动力学模型。

Based on the investigation of molecular dynamics simulation,a deposition dynamics model of incident atom in vapor phase deposition was established.

在分子动力学研究的基础上建立了气相沉积原子的沉积动力学物理模型，并根据在局域环境下的表面原子扩散模型，通过运动学MonteCarlo方法研究了Au/Au(100)外延薄膜的初期生长过程，探讨了薄膜外延生长随基体温度的变化。

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％。