查询词典 aerodynamics

With the development of advanced aerobiology and aerodynamics , the aeroboat would be popular and people would research the mystery of the space's aeon .

随着先进的大气生物学和空气动力学的发展，水上飞机将会流行并且人们会研究宇宙永世的神秘。

It's the first principle of aerodynamics.

这是热力学第一定律。

So we have quite a good understanding of aerodynamics.

因此，我们有相当充分的认识，空气动力学。

On the aerodynamics we can be better too.

空气动力学方面我们也可以更好。

The knowledge of aerodynamics and elasticity is involved in this system.

该系统包含了流体力学和弹性力学两个领域的知识。

We froze the engine and all that money was put into aerodynamics and other areas of the company.

我们冻结了引擎，这部分的钱被用在了空动和其他方面。

Through deduction of hydraulics principle and calculation of aerodynamics and hydraulics,this paper defined the principle of intake equipment and the calculating method of water dynamics and aerodynamics,and hereby designed siphonic intake equipment and took a full scale experience.

通过对滗水器的水力学原理推证，以及对气体动力学和水力学计算，确定了滗水器的原理及水、气动力学计算方法，并据此设计了虹吸式滗水器，同时经生产性试验证实，其效果良好

To overcome the bad effect resulting from the nonlinearity time-variability and uncertainty on autopilot system performance during the motion process of aerodynamics missile, and to further improve the flight quality of missile, the autopilot system and used control method are researched. Firstly the integrant structure of system is discussed; then baaed un introducing the traditional PID method, controllers for missile attitude motion are designed respectively using fuzzy self-turning PID method and neural network self-adaptive PID method; at last a simulation experiment is finished. By comparing the simulation results that the designed controllers have good qualities is showed, and the feasibility and validity of applying fuzzy control and neural network into automatic control of aerodynamics missile is confirmed, and the base that other nonlinear control theory can be combined with the traditional control for missile to further improve the performance of missile control system is established.

为了克服飞航导弹运动过程中的非线性、时变性和不确定性对自动驾驶仪系统性能的不良影响，进一步提高导弹的飞行质量，对自动驾驶仪系统及其采用的控制方案进行了研究；首先对系统的整体结构进行了分析，然后在介绍经典PID方案的基础上，分别采用模糊自调整PID方案和神经网络自适应PID方案设计了导弹姿态运动控制器，最后进行了仿真实验；仿真结果的对比展示了所设计控制器良好的品质，验证了将模糊控制和神经网络应用于飞航导弹自动控制中的可行性和有效性，为其它非线性控制理论与导弹传统控制相结合以进一步提高导弹控制系统的性能奠定了基础。

The fiber are successfully used in the practical noise control. The model of aerodynamics in the course of the intermittence exhaust is simplified into exhaust problem of two stage series cylinder. Digital calculation program which can really imitate aerodynamics characteristics in the exhaust process is established. A simple formula which can be used for calculating the volume of the silencer expansion chamber is established.

作者指出间歇性排气过程的空气动力模型可简化为两级气缸串联的排气问题，编制的数值计算程序真实地模拟了排气过程中的空气动力学特性，建立了消声器膨胀消声室体积大小计算的表达式。

So in this paper, the micro-turbofan engine, which has several ten kilogram thrust level, moderate difficulty, low pressure ratio and single rotor, is studied in three ways which contain overall aerodynamics arrangement analysis and structure feasibility research, optimizing of aerothermodynamics circulation, overall aerodynamics design ane flying performance simulation.

本文对于数十公斤推力量级的、工程技术难度适中的、低增压比的一种单叶轮微型涡扇发动机，进行了总体气动布局分析和结构可行性研究，热力循环优化设计，总体气动设计及飞行特性模拟这三个方面的研究。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。