ultrasonic source meaning in Chinese

超声源

Verification regulation of standard ultrasonic sources for milliwatt level
毫瓦级标准超声源检定规程
Ultrasonic sources at milliwatt levels
毫瓦级超声源
Verification regulation of ultrasonic source for ultrasonic doppler fetal monitor
超声多普勒胎儿监护仪超声源检定规程
Verification regulation of ultrasonic source for medical ultrasonic diagnostic equipment
医用超声诊断仪超声源检定规程
Verification regulation of ultrasonic source for ultrasonic doppler fetal heart beat detector
超声多普勒胎心仪超声源检定规程

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