动力学

In this paper the dynamics characteristics are analyzed theoretically at first. According to the unique configuration and mechanics characteristics, the mechanics model and kinetic differential equation of the half-tracked air-cushion vehicle are established. Algorithm of mechanics and lifting-state parameters are put forward and analyzed. And variation ranges of the driving state parameters are obtained and the corresponding influence factors are analyzed. The further qualitative studies on control model are carried out.

因此，本文首先从理论上分析了半履带式气垫车的动力学特性，根据半履带式气垫车的独特结构和力学特性，建立了半履带式气垫车的力学模型和相应的运动微分方程，提出并分析了在纵摇与升沉运动时，半履带式气垫车的力学参数和垫升状态参数的计算方法，得到了在行驶过程中各运行状态参数的变化规律，并分析了相应的影响因素，进而对控制对象模型进行了定性研究。

The dynamic characteristics of the half-tracked air-cushion vehicle are different from other conventional vehicles. Its mechanical equation includes several parameters being related to propulsion system, air-cushion system and soil condition. This system is a higher order nonlinear time-variant system with a delay.

由于半履带式气垫车的力学特性不同于以往的常规车辆，其动力学模型包含与驱动系统、垫升系统、地面条件等有关的多个参数，属于大滞后的高阶非线性时变系统。

For being easier to conduct the dynamic analysis of an airborn radar antenna, using the mechanical property of the sandwich structure, an equivalent method is proposed.

庄苹为便于机载雷达天线的动力学分析，由夹层结构的力学特性，提出了用单层结构等效夹层结构的方法。

JNLWD has recently asked the company building the gas canister, General Dynamics, to develop methodologies to characterize the aerosols it generates, and to calculate the ground area coverage of gas clouds created by an airburst at different altitudes.

JNLWD 最近让某家公司来建立气体滤毒罐和常规动力学，来改善产生气溶胶的品质，计算在不同海拔下炸弹空爆产生的气体云雾笼罩的不同区域范围。

The study of airflow over and around an object and an intrinsic part of Formula One car design.

空气动力学是对物体四周以及加载在其上的气流研究，它也是F1赛车设计的灵魂所在

This paper introduces the geneses and developing of digital compass in brief. Also expatiates digital compass s background theory , including airmanship spatial orientation theory and attitude dynamics etc.

本文简要介绍了数字航向仪的起源与发展状况，并介绍了数字航向仪的相关理论背景，包括航天导航技术、空间定位学和姿态动力学等理论。

The profile of C5 Airscape reflects efforts to achieve optimal aerodynamic design.

在碳五鸟瞰图资料反映出的努力，以达到最佳空气动力学设计。

The profile of C5 Airscape reflects Citroen's efforts to achieve optimal aerodynamic design.

" C5鸟瞰"的轮廓反映了雪铁龙公司为达到最佳的空气动力学设计做的努力。

Dynamics modeling is the base of the airship control problem.

动力学模型是飞艇控制问题研究的基础。

Airstream distribution in a typical room with cold air diffusion was investigated by the method of computational fluid dynamics.

以某一典型的空调房间为研究目标，利用计算流体动力学，研究在低温送风条件下，室内气流组织的分布状况。

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。