ultrasonic
01
超声的
involving or relating to sound waves with frequencies higher than the upper limit of human hearing
例子
The ultrasonic cleaner uses high-frequency sound waves to clean delicate items.
超声波清洁器使用高频声波来清洁精致物品。
Dogs can hear ultrasonic frequencies that are beyond the range of human hearing.
狗可以听到超出人类听力范围的超声波频率。
