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本文叙述了流动超声法──一种简单的非接触式流量测量方法的工作原理，并根据流动过程中的声学现象，结合声发射技术，分析了流动超声法测流量的可行性。
This article describes the flow ultrasound method ─ ─ a simple non-contact flow measurement method works, and according to the acoustic phenomena in the flow process, combined with acoustic emission technology, the feasibility of flow ultrasonic measurement of flow measurement.