進しん行こう波は

noun

traveling wave; travelling wave

Technical term in physics and engineering for a wave that propagates through a medium or space.

• 進しん行こう波はは、媒ばい質しつ中ちゅうを一いっ定ていの速そく度どで伝つたわる波なみです。

  A traveling wave is a wave that propagates through a medium at a constant speed.