sonar

ソナー

音を出し、戻ってくる音を調べて水中の物を探す方法。

やさしい英語で： A method of finding things underwater by sending out sound and studying the sound that returns.

• The ship used sonar to find the wreck.
• Sonar can measure the depth of the sea.
• The submarine was detected by sonar.

類義語： ASDIC

よく使う表現： use sonar, sonar detection, sonar signals

ソナー装置

戻ってくる音を利用して、水中の物を探す装置。

やさしい英語で： A machine that uses returning sound to find things underwater.

• The boat has a new sonar.
• They installed a sonar near the front of the ship.
• Our sonar stopped working during the trip.

よく使う表現： install sonar, new sonar, sonar equipment

反響定位

音を出し、物に当たって戻る音を捉えて、その物の位置を知ること。

やさしい英語で： Finding objects by making sounds and noticing how they return after hitting something.

• Bats use sonar to find insects.
• A dolphin’s sonar helps it hunt in cloudy water.
• Natural sonar allows some animals to move in darkness.

類義語： echolocation

よく使う表現： natural sonar, biological sonar, use sonar