4. ultrasonic在线翻译
第三人称单数：ultrasonics
2. ultrasonic的解释
形容词[声]超声的; 超音波的，超音速的
名词超声波
6. ultrasonic什么意思
1. 超声波的Ultrasonic sounds have very high frequencies, which human beings cannot hear.
adj
1. having frequencies above those of audible sound
Synonym: supersonic
ultrasonic
