音速

Seattle SuperSonics: The Sonics have been busy, doing very little.

西雅图超音速: 超音速一直很忙, 但几乎没做什么.

Prey to a military thrust transonic flight, feeling and F-15 Afterburner almost open.

猛禽以军用推力跨音速飞行, 感觉上和F-15开加力差不多.

Hypersonic aircraft refers to the speed of sound, at least 5 times more than the aircraft.

高超音速飞机是指超过音速至少5倍的飞机.

flying at less than the speed of sound

比音速稍慢的n.亚音速飞机

A three-dimensional global chemistry transport model ( OSLO CTM2) is used to investigate the impact of subsonic aircraft NOZ emission on NOX and ozone over China in terms of a year 2000 scenario of subsonic aircraft NOX emission.

根据2000年亚音速飞机排放的NO x，利用三维全球化学输送模式（OSLO CTM2）研究亚音速飞机排放的NO x对中国地区NO x和臭氧的影响。

An experimental investigation on effects of oscillating shock generated by liquid jet on reinforcement of hydrogen-fueled supersonic combustion in Mach 2 airstream was completed.

研究了在燃烧室入口马赫数为2的超音速燃烧中，液体射流所产生的振荡激波对强化超音速燃烧的作用。

In the whole flow range, the impeller operates under subsonic condition and the radial diffuser operates under transonic condition, thus the choked mass flow rate is determined by the throat area of the radial diffuser.

整个特性线范围内离心叶轮基本在亚音速情况下工作，而径向扩压器是在跨音速条件下工作，离心压气机整机的最大流量是由径向扩压器的喉部面积决定的；

This lets the gas escape and slows the bullet to below the speed of sound.

由此气体得以枪管里泄出,而子弹的速度也会降到音速以下.

The supersonic combustion chamber inlet is a 2 D convergent-divergent nozzle.

高超音速冲压发动机由进气道、超音速燃烧室和喷管组成.

But most of all, l wanna drive this car right through the sound barrier.

但是, 我最想做的是开这辆车突破音速.

Pneumatic signals will travel only at sonic speeds.

气动信号的传输速度仅仅相当于音速.

The scramjet, which is the propulsion of hypersonic vehicle, has become the focus in many military developed countries.

高超音速飞行器的动力装置&超音速燃烧冲压发动机的研究已成为当前各军事强国研究的热点。

The flight speed of new-style SST plane is 3 times sonic.

新型SST飞机的飞行速度为音速的3倍.

Since light travels faster than sound, people appear bright until you hear them speak.

由于光速比音速快, 所以在我们听到人们开口之前,个个都显得很聪明.—萧伯纳.

A compact subsonic CW chemical oxygen-iodine laser ( COIL) was firstly used as a probe to measure the temporal and spatial dependence of the small-signal gain in a supersonic CW COIL.

首次利用一台亚音速小型连续波化学氧碘激光器做探测光源，用放大法直接测量超音速化学氧碘激光器的小信号增益系数，测得了小信号增益系数随时间和气流方向的变化。

There are four major problems for transonic wind tunnels to generate transonic airflow: Solving the air-logged condition; Generating the equably low supersonic airflow; Reducing or eliminating the wall interference of subsonic airflow; Reducing or eliminating the influence of the shock waves' reflection.

跨声速风洞产生跨声速气流主要有四个问题：解决风洞的堵塞现象；产生均匀的低超音速流动；减少或消除亚音速洞壁干扰；减少或消除激波反射的影响。

Light travels faster than sound. That's why some appear bright until you hear them speak.

光速快于音速. 这就是为什么你在听到他人的发言后才会意识到他们的存在.

This article prepares some Zn Al ( ZA 20 ) powders with the method of ultrasonic atomizing quick solidification.

本文采用超音速雾化快速凝固技术制备锌铝合金 ( ZA20 ) 粉末.

The new airplane flies at twice the speed of sound.

这架新式飞机以两倍于音速的速度飞行.

It would reach hypersonic speeds -- five times the speed of sound.

也就是说,要使飞机达到特超音速—即音速的五倍.

An effective aerodynamic optimization design method of transonic airfoil is given.

提出了一种有效的跨音速翼型气动优化设计方法.

Empirical results are needed in the transonic Mach regime.

在跨音速马赫数范围内需要经验结果.

The aim is to fly at about Mach 2, twice the speed of sound.

目标是以大约2马赫的速度飞行，也就是音速的两倍。

Experience in supersonic flight is modifying subsonic aircraft.

超音速飞行的经验可以修正亚音速飞行.

The aeroplane will travel at twice the speed of sound.

这架飞机的速度将是音速的两倍。

No matter the boundary layer is subsonic or supersonic, nonparallel effects are obvious at the critical Reynolds number, such that the critical Reynolds number is reduced and the frequency range of unstable disturbances is broadened at the critical Reynolds number.

无论是在亚音速还是超音速边界层中，非平行性的影响在临界雷诺数处比较明显，具体是一使得临界雷诺数变小，二使得临界雷诺数处增长扰动的频率范围变得更大。

2, According to the characteristic of the hypersonic aircraft, the task of designing the hypersonic aircraft include initial phase, cruise phase and end attack phase.

根据高超音速飞行器的特点，设计了高超音速飞行器的任务剖面，包括初始段、巡航段和末端攻击段。

At supersonic and hypersonic speeds, a shockwave forms around the steak that helps protect it from the faster and faster winds.

在超音速和高超音速条件下，牛排周围会形成激波，而激波会把牛排和越来越快的狂风隔离开来。

The holes themselves have a restricting or stabilizing effect because flow may become sonic.

因为这时流动可成为音速流动,所以这些小孔本身有一种节制作用或稳定化作用.

A computational method of characteristics initial-value line in the rotational supersonic cascade flow field with detached shock waves is presented.

本文提出了含脱体激波的叶栅有旋超音速流场的特征线起始线计算方法。采用激波嵌入法解完全的欧拉方程，计算了含脱体激波的多圆弧叶栅的超音速进口流场。