| 释义 |
mach number 英mɑːk美mɑkAHDmäk 短语¹¹⁴⁴⁶⁷⁺⁴
基本英英例句
n.〈空〉马赫数相当于声速的飞行速度
Noun:
the ratio of the speed of a moving body to the speed of sound It is shown that the attenuation coefficient will decrease obviously with the increase of Mach number, and the nonlinear acoustic resistance and acoustic mass will reduce slightly.
研究表明，随着气流马赫数的增加，吸声结构的消声系数明显下降，微穿孔板的非线性声阻和声质量修正值都略有减少。 cnki
The model inputs include the fuel flow, the nozzle area, the altitude and Mach number, and model outputs include the rotor speed, the temperature and the air pressure.
模型的输入量包括燃油流量、喷口面积、高度及马赫数，输出量则包括高、低压转子的转速及各截面的温度和压力。 cnki
The qualitative relationships of specific impulse versus the content of boron particle in propellant, flying altitude and flying Mach number are obtained.
得出了发动机比冲与推进剂中硼粒子含量、飞行高度及飞行马赫数之间的定性关系。 cnki
Because the piston theory is used only locally, this method greatly reduces the limitations of the classical piston theory on flight Mach number, airfoil thickness, and angles of attack.
由于局部地使用活塞理论假设，这种方法大大地克服了原始活塞理论对飞行马赫数、翼型厚度和飞行迎角的限制。 cnki
For a high bypass ratio fan with the Mach number1.4 and a three-stage supersonic fan with the Mach number in excess of1.5, computational results are in good agreement with test one.
利用该模型，本文分别对一台叶尖马赫数达到1.4的大涵道比风扇和一台叶尖马赫数高达1.5的三级风扇的非设计点性能进行了计算，计算结果与试验结果保持了较高的吻合性。 cnki
For that with longer flight time and higher Mach number, a concept of thermal management system using endothermic fuels as heat sink was advanced.
对飞行时间长，飞行马赫数高的飞行器，提出了以吸热型碳氢燃料为热沉的热管理方案； cnki
Results show that the effects of incoming Mach number and the nozzle geometry are pronounced, while the jet- momentum ratio has little affects on the gains defined here.
结果表明，马赫数和喷口布局对增益特性均有显著影响，但本文定义的增益因子却基本与动量比无关。 magsci
Speed feedback of yaw angle was realized through adding mode damping ratio of Dutch roll and adjusting mach number by height.
偏航角速率反馈以增加荷兰滚模态阻尼比，按高度及马赫数调参数实现。 cnki
The average effective pitch damping increases with increasing angle of oscillation amplitude and decreases with increasing Mach number.
角振幅增大会使返回舱的平均俯仰阻尼增加，马赫数增大使俯仰阻尼降低。 cnki
There exist a close coupling relation between the wind tunnel flow field parameters, total pressure and Mach number.
风洞流场参数—总压、马赫数之间存在严重的耦合关系。 cnki
This paper presents the surface characteristics of the inter-action between shock wave and turbulent boundary layer induced by sharp fin with emphasis on Mach number effects.
本文介绍了尖前缘翼诱导激波和湍流边界层干扰流场壁面特性，着重强调马赫数影响。 cnki
This engine is suitable for an aircraft requiring high speed and sustained high Mach number cruise conditions where the engine operates in the ram jet mode.
这种发动机适合要求高速飞行并且维持高马赫数巡航状态的飞机，在这些状态下，该发动机是以冲压喷气发动机方式工作的。 aviation.nuaa.edu.cn |