Đồng nghĩa của sound mirror

Danh từ

A passive device for reflect and often focusing sound waves, chiefly used to provide early warning of incoming aircraft (by detecting the sound of their engines)

Trái nghĩa của sound mirror

Music ♫

Copyright: Proverb ©

You are using Adblock

Our website is made possible by displaying online advertisements to our visitors.

Please consider supporting us by disabling your ad blocker.

I turned off Adblock