ultrasound medicine

例句：

1. 1.Ultrasound imaging is used to diagnose conditions such as tumors and infections.
   超声成像被用来诊断肿瘤和感染等疾病。
2. 2.The ultrasound machine was used to monitor the fetus during pregnancy.
   超声波机器被用来在怀孕期间监测胎儿。
3. 3. Ultrasound technology has greatly improved the accuracy of medical diagnoses.
   超声波技术大大提高了医学诊断的准确性。