俯仰运动

This study investigated the effects of different platform motion directions (static, heave, roll, pitch and random) and cursor movement angles (0°, 45°, 135°, 180°, 225°, 270° and 315°) on manipulating three different kinds of trackballs to conduct the point-and-click task.

本研究主要探讨船舰载台不同的运动模式（静态、上下起伏、左右摇摆、前后俯仰与随机运动）与平面游标移动角度(0°， 45°， 90°， 135°， 180°， 225°， 270° and 315°)对使用三种不同轨迹球的影响。

It is found out that the different titling directions of moving mirror affect the system error independently, at the same time they can be added. The original phase of the interferogram is changed slowly or rapidly with the optical path difference changed, and the phase error is different too.

在动镜的运动中，左右方向的倾斜和俯仰方向的倾斜对系统的影响彼此具有独立性，又具有叠加性；干涉图中初相位因子随光程差改变缓慢变化或快速变化，对相位误差的影响也不全相同。

With its effortless refined turbo diesel engine matched with a dynamic chassis plus a good 6 speed transmission, the S80 brought out superior on road motoring behaviour. It whiskered corners and bends competently, a keen driver will not be disappointed with its ability in excellent body control and mid-corner adjust ability. Not to mention with its excellent fuel economy on highway cruising. The wind and engine sound were minimal, and you can just concentrate on listening to its on board premium sound system.

S80是Volvo车厂精心的为过去，现在及未来的顾客研制的大师级作品，它与福特及越野路华共用一个汽车底盘，而经由Volvo厂方自己再调校，使它比越野车Freelander的底盘更强5个百分比，这个Dynamic Chassis底盘可以不断的监察汽车的反应，以抑制器快速的回应汽车的驾驶情况，并抗衡汽车在强大的加速，极端的制动及快速的转向所造成的俯仰，前潜及翻滚等反应，而它亦配上舒适，运动及先进的选择模式，这些科技帮助驾驶者及乘客取得优良的驾车及乘车经验。

The model was oscillated about its body axis with selected pitching frequency and amplitude during its continuous rotation about the wind axis.

模型在绕风速轴连续旋转的同时，进行给定频率和振幅绕体轴的俯仰振荡运动。

Identical autopilots are used to control the pitch and yaw motions if the missile has two planes of symmetry.

如果导弹有两个对称面，则使用相同的自动驾驶仪控制俯仰和偏航运动。

Firstly several vehicle dynamics models and tire models are analysed. Combining with the present condition and studying require, 3 dynamic differential functions about bodyworks velocity, roll and vertical displacement are gained. Furthermore based on the following rear wheel rev function and front-and-rear wheels vertical moving function, a 6-DOF, two wheels, lognitudinal dynamics model of the bus is set up.

本文首先对几种车辆动力学模型和轮胎模型进行了分析，结合现有条件和研究需要，得到关于汽车车身的速度、俯仰角和垂向位移的3个动力学微分方程，结合利用Simulink得到的前后轮垂向运动方程和将在后续研究中给出的后轮转速方程，建立了客车两轮6自由度纵向动力学模型。

The objective and subjective evaluations all indicated that manipulating trackballs in random motion was the most difficult, and in roll or pitch motions was also more difficult than that in static or heave.

从实验中发现不论主观与客观的分析结果均显示在随机运动的环境下操控轨迹球是最困难的，左右摇摆、前后俯仰的运动环境次之，静态与上下起伏的影响最小。

On the basis of propulsive model,a mathematical model which is used to describe the motion of pitching and heaving of dolphin's caudal fin by ways of coordinate transformation is deduced.Meanwhile,this model can show the relationship between the motion of caudal fin and parameters related,then the motion of caudal fin of dolphin is simulated by the software of Matlab which showed the swimming principle.

以海豚背腹式摆动推进方程为基础，应用坐标变换的方法，建立了描述海豚尾鳍俯仰－沉浮运动的数学模型，同时建立了描述豚尾各运动参数之间关系的方程，随后运用Matlab的仿真功能再现了海豚在游动过程中尾鳍的运动规律。

The results show that the loads from landing gear to aircraft body are obviously reduced by using active control technology. The motion of aircraft CG and the variation of pitch angle are more stable, and the strut load and strut stroke of landing gear can be maintained in a range of static equilibrium condition.

计算结果表明，主动控制技术可明显降低起落架传给机身的载荷，隔离由地面产生的振动，使飞机重心运动和俯仰角变化更加平稳，使起落架支柱载荷和行程位移尽量保持在静态平衡状态的一定范围之内。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。