sonar
US /ˈsoʊ.nɑːr/
UK /ˈsəʊ.nɑːr/
名詞
聲納
a system for the detection of objects under water and for measuring the water's depth by emitting sound pulses
範例:
•
The submarine used sonar to navigate through the deep ocean.
潛艇利用聲納在深海中航行。
•
Fishing boats often use sonar to locate schools of fish.
漁船經常使用聲納來探測魚群。