To study a new type ultrasonic Doppler flow meter for industry flow measurement of the liquid in the airtight pipeline.
文中研究一种用于工业密闭管道流体流量测量的新型超声波多普勒流量计。
To study a new type ultrasonic Doppler flow meter for industry flow measurement of the liquid in the airtight pipeline.
文中研究一种用于工业密闭管道流体流量测量的新型超声波多普勒流量计。
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