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sonar英英字典_sonar剑桥英语解释_sonar柯林斯英文解释_零六五六深蓝词典

sonar

S 开头单词专八核心词托福词汇 SAT词汇

柯林斯词典

sonar /ˈsəʊnɑː/ (sonars)

1. N-VAR Sonar is equipment on a ship which can calculate the depth of the sea or the position of an underwater object using sound waves. 声纳

剑桥词典