ultrasonic [ˌʌltrəˈsɒnɪk]以下由轻松背单词网站提供
单词级别第9级基本释义adj.超声的;n.超声波英英释义describes sound which is too high for people to hear参考例句It was very necessary for people to take type-B ultrasonic inspection regularly. 定期进行B超检查是十分必要的。Sounds are classified into two kinds: sonic and ultrasonic. 声波分为两类,即普通声波与超声波。 推荐阅读 |