俯仰

The cameras are placed on the theodolites which are laid on the sides of flight path, and it can take airplane′s photos at azimuth and pitching angle.

数字摄像机安放在经纬仪上，经纬仪布置在飞机飞行轨迹的两侧，构成了一个能够在俯仰角和方位角下拍摄图像的光测机构。

Results show that in hover the fuselage normal force and pitching moment are relatively high due to the influence of rotor/wing downwash; and in low speed forward flight, the downwash have strong interaction on the normal force and pitching moment of fuselage due to the big dimension horizontal tail; the effects of downwash on the fuselage rolling and yawing moments are little and the influence on fuselage side force is considerable.

结果表明，悬停时受主机翼高速旋转产生的下洗尾流影响，机身产生了较大的法向力和低头力矩；前飞时下洗尾流对机身的法向力和俯仰力矩有比较严重的干扰，对滚转力矩和偏航力矩干扰较小，对侧向力有一定影响。

This Digital Compass not only provides the course angle but also affords the carrier s pitch angle and roll angle .The two data of attitude are both exported digitally.

本次设计的这种数字航向仪除了提供载体的航向角，还提供了载体俯仰角和翻滚角两个姿态量，并以数字形式输出。

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。

So, Variable Structure Control Theory is used in angle stabilization of roll, and Model-following Variable Structure Control Theory is used in acceleration stabilization of pitch and yaw.

因此，本文采用了变结构控制理论设计倾斜角稳定系统，采用了模型跟踪变结构控制理论设计俯仰、偏航通道的加速度稳定回路。

Numerical simulation results demonstrate that active suspension with a proper control strategy can decrease the roll angle and roll angle acceleration of the truck cab, the active suspension can improve both the ride comfort and driving safety.

大量的仿真结果显示，主动控制悬置系统明显降低了驾驶室的俯仰角加速度和俯仰角，采用主动控制悬置系统可有效地改善卡车行驶平顺性和乘坐舒适性。

By using the 5-D freedom aircraft model, a nonlinear feedback control law which decouples the angle of roll, pitch and sideslipe is synthesized according to the nonlinear decoupling theory

采用五自由度横纵向耦合非线性模型，应用非线性解耦理论，设计了关于滚转、俯仰和侧滑角的解耦控制律。

Based on a study of the passive articulated rover,a complete suspension kinematics model from wheel to inertial reference frame is presented,which uses the D-H kinematics model method of manipulator and presentation with Euler angle of pitch,roll,and yaw.

以被动关节式地形自适应月球车为研究对象，融合关节机器人D-H坐标建模方法构建了月球车悬架运动学模型和以侧倾、俯仰和偏转角表示姿态的欧拉角方式建立了车轮到世界坐标系的悬架完整表达模型。

Through the computer simulation,analyzing the effects of pitch angle,roll angle,roll angle rate,sink rate,angle of attack and side angle on the track of ejection and save life height .

为提供弹射座椅多模态控制输入参数选择的理论依据，通过计算机仿真，比较分析了俯仰角、滚转角、滚转角速度、下沉率、迎角、侧滑角等弹射启动时飞机状态参数对弹射轨迹和安全救生高度的影响。

The simulation experiment indicates that the system can detect some parameters accurately, like equivalent, angle of pitch and distance. Compared with the conventional method, it has relatively high accuracy as well as good stability and reliability.

模拟实验表明，基于图像处理的核爆炸光辐射探测系统能准确探测核爆炸的相关参数如当量、俯仰角和距离，与传统方法相比具有高精度和良好的稳定性和可靠性，具有一定的实用价值。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。