The design and application situation about HZ type dust proof airtight cover is introduced.
简要介绍了HZ型防尘密闭罩的研究设计和工程应用情况。
Form: Vertical musical instrument type and airtight ventilation structure. The main control cabinet and the operation table are set up separately.
形式：自立型琴式密闭通风构造。主控柜和操作台分设。
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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