查询词典 speed of sound

Mach'.'' 2, it is flying at twice the speed of sound.

马赫'。''的速度飞行，那么它的速度就是音速的两倍。

If a plane is flying at Mach 2, it is flying at twice the speed of sound.

假如飞机以二马赫的速度飞行，那么它的速度就是音速的两倍。

This was necessary to decrease the muzzle velocity of the bullet so it would be below the speed of sound.

这是必要的，以减少对初速的子弹，所以将低于音速。

So Santas sleigh must be moving at 650 miles/second, 3,000 times the speed of sound.

这样，圣诞老人的雪橇需要一秒钟跑650哩，这是音速的3，000倍。

The signal fluctuations, the impact of temperature on the speed of sound reasons, ultrasonic ranging system ranging accuracy improved much more restricted, This also affected the ultrasonic ranging system in a number of precision applications demanding occasions, the problem of great practical significance Research

由于信号起伏、温度对声速的影响等原因，超声测距系统测距精度的提高受到很大的限制，这也影响到了超声测距系统在一些精度要求较高的场合的应用，所以这个问题的研究有很大的现实意义。问题补充：翻译软件译的就不要再贴上来了！

The speed of sound in water is three times greater than that in the air.

声音在水里的速度比在空气中快3倍。

That is more than two times the speed of sound.

比声音的传播速度快两倍还多。

The speed of sound in water is about four times as great as in air.

声音在水中的速度比在空气中大三倍左右。

Because of the speed of sound transmission is faster.

答：由于声音的传播速度更快。

The experimental results agree with the accepted value of the speed of sound in air, i.e.

实验得出的结果与在空气中的声速的认可值，即

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。