俯仰

He tends to pitch it low, to understate it, to throw it away.

他倾向于低低的俯仰它，进而理解它，最后丢掉它。

Horizontal angle of fire was 24°, vertical angle of fire:-9+13°.

水平射界为24°，高低俯仰角为-9+13°。

Furthermore, the variations of vertical displacement and pitch angle of aircraft are obviously reduced, and the comfort and operation performances an improved greatly.

同时还可以减小飞机重心的垂直位移和飞机的俯仰运动，进一步提高飞机的乘坐舒适性和操纵稳定性。

A method and system based on compensation for beam drift are put forward in order to measure pitch and yaw errors.

提出了一种带有光线漂移补偿的测量导轨俯仰角误差、偏摆角误差的方法及系统。

Independent pitch and yaw of the two birds produce noise.

两只吊舱的独立俯仰和偏航均会产生噪声。

The S-IVB stage has its single engine gimbaled in pitch and yaw .

S-IVB级有一个单独摆动发动机来作俯仰和偏航。

Improved stability is provided in a hingeless helicopter rotor by inclining the principal elastic flexural axes and coupling pitching of the rotor blade with the lead-lag bending of the blade.

改进的稳定是提供在一个铰旋翼由倾斜的主要弹性弯曲轴和俯仰耦合的转子叶片与铅滞后弯曲的叶片。

In this paper ,move ment pri nci ple of rocket i n direction pi pe was got by dy— namic si mulation ,and effect characteristic consideri ng contact stiffness ,detent force and nozzle thrust misalignment a— bout pitchi ng angle velocity was analysis .All the study set foundationfor further study of high—lowpressure launch sys— te m.

通 过发射仿真分析，获得了火箭弹在高低压发射系统中的内弹道变化规律，分析了火箭弹与定向器的接触刚度、耳轴扭转刚度、尾喷管推力偏心等因素对俯仰角速度的影响特性，所得结论为火箭武器高低压发射系统的进一步相关研究奠定了基础。

Dynamic si mulation ; contact stiffness ; si mulation scri pt ; pitchi ng angle velocity

动力学仿真；接触刚度；仿真剧本；俯仰角速度

Computing the flow past a sinusoidally pitching airfoil validates this dynamic, unstructured flow solver, and the results compare well with the experimental data.

作为例证，计算了俯仰振动的NACA0 0 12翼型绕流，计算结果与实验及文献结果吻合。

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。