声速的英文：
velocity of sound

参考例句：

An experiment to measure the speed at which sound travels
测定声速的试验

mach two equals twice the speed of sound
二马赫相当于声速的二倍。

concorde travels faster than sound
协和式飞机的飞行速度比声速还快。

He found that the sonic surface was, in general, discontinuous
他发现声速面通常是不连续的。

The frequency, wave length, and speed of sound are closely related.
频率，波长和声速三者是密切相关的。

Aeroelasticity Matters: Some reflections on Two Decades of Testing in the NASA Lanley Transonic Dynamics wind Tunnel.
气动弹性问题:NASA兰利跨声速动力学风洞20年试验的几点思考。

velocity是什么意思：
n. 迅速；快速；速度；速率

Normally the shear velocity is about half of the compressional velocity
一般地说横波速度大约是纵波速度的一半。

low-velocity drop
低速度空投

high velocity drop
高速度空投

An increased velocity is randomly dispersed.
增加的速度任意地四散传播。

The velocities are independent of hydrostatic pressures
速度与流体静压力无关。

sound是什么意思：
n. 声音；印象，感觉；录音；音乐风格；海峡，海湾
v. 发出声音；探测，试探；听起来；发出警报
adj. 健全的，完好的；明智的；酣畅的
adv. 酣（睡）

Sounding by sound is a sound method of sounding sounds.
声音测量是一种用声学探测声音的方法。

sounding survey
海底测深；水深测量

The advance was sounded.
进军号吹响了。

sound - absorbing material and sound - absorbingconstruction
吸声材料和吸声结构

A sound mind is inseparable from a sound body.
健全的精神是与健康的身体不可分割的。