ultrasonic flow超声波流量ultrasonicadj.超声波的ULTRASONIC INSPECTION OF COMPOSITE INSULATOR合成绝缘子的超声检测方法ultrasonic wave-assisted alkali extraction超声波辅助提取Ultrasonic-microwave synergisticextraction超声波-微波协同萃取ultrasonic development diagnostic instrument超声显像诊断仪ultrasonic-mechanical associated machining超声－机械联合加工Ultrasonic Cavitation and Ultrasonic Therapy超声空化与超声治疗ultrasonic wave assisted polatrity extraction超声波辅助极性分离ultrasonic-microwave synergistic extraction超声-微波协同萃取ultrasonic images with cup-liked non-echo呈杯状无回声声像图ultrasonic synergistic-microwave extraction超声波-微波协同萃取