超声心动图（一种从本体外测出心脏内各层组织结构周期性活动曲线的诊断技术）

sonic, ultrasonic, sonotrode

supersonic【声】;ultrasonic【声】

ultrasonic flowmeter

Ultrasonic Cleaners

ultrasonic cleaning

cardiac ultrasonic contrast

ultrasonic Doppler flowmeter

protable ultrasonic thickness meter