应用该系统详细测量了单孔板和双孔板管流的轴向和径向平均速度。
Detailed measurements were made in a pipe flow for single and double orifice cases by using: this system.
本实用新型是由双孔面板、带元件的印制板和螺钉构成，采用的是二分配器电路。
The utility model is composed of a double-hole panel, screws and a printed board with elements, and a second distributer circuit is adopted.
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