When appropriate transducers are installed, it may be applied to the measurement of distance, depth, average flow velocity and mass flow rate.
在配备相应的传感器后，可用以测量平均流速、流量及距离、深度等。
A gas control panel with: gas analyzing, flow and pressure measuring transducers, calibration and safety features.
天然气的控制面板：气体分析，流量和压力测量传感器，校准和安全功能。
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