Suddenly they do the Doppler effect where they turn their backs to you, in a way, and they're marching away from you and you hear very little sound.

突然，他们也产生了多普勒效应，当他们转身背对你时，当他们背离你前进时，你会听到一种很微弱的声音。

youdao

Wind farm turbines create a Doppler effect as they rotate, creating a potential radar blackout zone.

风力涡轮机在旋转过程中产生多普勒效应，形成一个潜在的雷达中断区。

youdao

If you stay where you are and you don't move and I move these tuning forks, you will hear a different frequency and that's what we call Doppler effect.

如果我站在这里，你们不移动，我移动这些音叉，那么你们会听到不同，频率，这就是我们，所说的多普勒效应。

youdao

The Doppler effect explains changes in the length of light waves or sound waves as they move toward you or away from you.

VOA: special.2009.04.29

Suddenly they do the Doppler effect where they turn their backs to you, in a way, and they're marching away from you and you hear very little sound.

突然,他们也产生了多普勒效应,当他们转身背对你时,当他们背离你前进时,你会听到一种很微弱的声音

耶鲁公开课 - 聆听音乐课程节选

It also is known as the "Doppler effect."

VOA: special.2009.04.29

This exploits the Doppler effect familiar when a siren changes pitch as the fire engine on which it is mounted speeds past you.

ECONOMIST: Is there anybody out there?

This is a reddening of a galaxy's spectrum caused by the Doppler effect (the effect that causes a police-car siren to drop in pitch as the car drives away).

ECONOMIST: Astronomy

Just as you could use the Doppler Effect to pinpoint the location of a satellite flying overhead, you could also employ satellite signals to find your own location on the ground.

FORBES: Creating a Culture of Innovation at the World Bank