adj.超声波的
The doctors gave him an ultrasonic brain scan. 医生给他做了脑部超声波扫描检查。
Much as bats do, robots send out ultrasonic signals. 机器人就象蝙蝠那样地发出超声波讯号。
n.超声波;超声学
adv.超声地(超音速地)