What does sound travel through?

声音是通过什么媒介传递的？

youdao

What Does Sound Travel Through?

声音是通过什么传播的？

youdao

Just how fast does sound travel through the air?

声音在空气中的传播速度究竟有多快？

youdao

Because of the distance that low-frequency sound waves can travel under water, a set of four ships emitting sound at 235 decibels could monitor 80% of the world's oceans for submarines.

ECONOMIST: The American navy may soon have a whale of a problem

Soil is a highly attenuating material, meaning that it is difficult for sound waves to travel far in it.

ECONOMIST: Archaeology

Throughout its life Amtrak has made the argument, repeatedly, that rail is the most cost-effective and environmentally sound form of travel.

CNN: Amtrak train: No better way to connect with U.S. voters