俯仰

Using one detector and few electronic elements, the invention realizes detecting azimuth and pitch angle of incident beam in high speed, and large field of view. Beam-splitting for incident beam is not needed.

本发明中使用一个探测器及少量电子元件就能实现对入射光束的方位和俯仰角进行高速度、大视域的检测，并不需要对入射光束进行分束。

For controlling the angle of pitch and velocity of rotate shaft of helicopter,the control performance of fuzzy PID,neural network PID and immune PID is compared each other.The simulation results show that neural network PID controller has the highest accuracy.

针对直升机俯仰角度控制和旋转轴速度控制需求，对模糊PID控制、神经网络PID控制和免疫PID控制在不同控制规律下的系统控制效果进行了对比研究。

The system can automatically seek north when the vehicle is immobile. And the time consumption is no more than 5.5 min. Besides, the system can keep azimuth angle and provide tilt angle and pitch angle of the vehicle.

本系统可以在车载条件下，停车完成自动寻北，寻北时间小于 5.5min；本系统还具有在机动时进行方位保持、实时提供载体倾斜角和俯仰角等功能。

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。

The experiment resuh shows that in straPdawn condition, with thegnscoP suPPlying attitude, the measuring direction s maximum ermr is less than 0 .6 degree (the range of the bank angle and the pitch angle is within ± 45°).

实验结果表明：在捷联状态下，用垂直陀螺提供我体的姿态角，在俯仰角、倾斜角达±45°的情况下，测角精度优于0.6°。

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。