俯仰

The effect of initial attack angle and pitching angular velocity on the selection of release angle is remarkable.

得到标枪的初始攻角和俯仰角速度对出手角度选择的影响较显著。

The angle of attack, pitch angle and velocity at shifted point for typical trajectory were calculated.

给出了两种控制方法的导引律，计算了典型弹道的攻角、俯仰角和交班点速度等参数。

The short period mode is an oscillation of the pitch of the aircraft at mainly constant speed while the phugoid mode is an oscillation of the pitch at mainly constant angle of attack.

短周期是在等速运动下飞机俯仰的振荡，长周期是在攻角保持定值下飞机俯仰的振荡。

The national defence basic project as background and the dynamic model of cotrolled transfer matrix for multiple launch rocket was created in order to reduce the initial disturbance of rocket projectile. The causes that affect the angle change of orientation locator were analyzed by the engineering system dynamic theory base on multibody system transfer matrix method. The simulation of dispersion for multiple launch rocket was implementation, and the affect law between the angle of elevation and side deflection and the control parameters was acquired. The control module was installed on the orientation locator of multiple rocket launcher to control the initial disturbance of rocket that provide new method and theory base and show the engineering system dynamic base on the multibody system transfer matrix method is effective.

本文以国防基础科研项目为背景，建立了通过控制定向器角运动来减小火箭弹起始扰动的多管火箭受控多体系统动力学模型，应用基于多体系统传递矩阵法的工程系统动力学理论，进行了定向器角度运动的影响因素分析，进行了受控多管火箭炮发射动力学和密集度数值仿真，得到了定向器俯仰和侧偏角控制参数对俯仰角和侧偏角的影响规律，为在火箭炮定向器上加装控制集成模块控制火箭弹的起始扰动和射击精度提供了新思路和理论基础，也表明了基于多体系统传递矩阵法的工程系统动力学理论的有效性。

The weapon has 2 degrees of rotation ( it pitches and yaws, ie. Aim anywhere in the hemisphere around the hardpoint ): you can use 1 dynamic base for the "yawing" part, and 1 dynamic barrel/gun for the "pitching" part, attached to the yawing base.

武器拥有两个旋转轴（它可以俯仰和自旋，例如：炮口可以指向挂载点一侧半球内的任意方向）：你可以用1个动态的基座来完成"自旋"部分，和1个动态的炮管/枪管完成"俯仰"部分，附加在自旋基座上。

A multiminate layer vapor screen technique and force measurement technique for an unsteady flow in the intermitted wind tunnel is presented in this paper.

本文介绍在暂冲式三声速风洞中实现了非定常流动的多片光蒸汽屏显示技术和测力技术，并用这两项技术研究了亚声速时70°后掠三角翼模型俯仰振动的非定常流动现象，探讨了由于三角翼模型俯仰振动产生的涡结构与纵向气动力特性之间的相关关

Take the BTT missile with airplane figure for example, the lateral-roll coupled and pitch self dynamics model was set up according to the flight condition. Two autopilots were designed and the simulation had been finished.

以某飞机型BTT导弹为例，根据其气动特点建立了俯仰独立、偏航-滚转耦合的气动模型，并分别设计了俯仰及偏航-滚转通道自动驾驶仪，对设计结果进行仿真。

Bottom-slewing crane with luffing jib and towel' with backstays,- Bottom slewmg saddle jih cranes with out backstays, Bottom-slewing cranes with luffing jib

与俯仰运动三角帆的底部旋转与后牵索的起重机和towel，-与后牵索的底下slewmg马鞍jih起重机，与俯仰运动三角帆的底部旋转起重机

Elevator, Horizontal Stabilizer Pitch Control and Pitch Trim Control

升降机，水平安定面俯仰控制及俯仰平稳控制

In the second method, the nonlinear tracking differentiator is applied to producing the differential signal of the pitch angle, which is used to calculate the pitch angular rate.

给出了两种重构方法，一种是通过建立等效的线性模型，设计线性状态观测器重构状态信号，另一种是使用非线性跟踪微分器方法，通过跟踪俯仰角的微分信号来计算俯仰速率信号。

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。