... air-flow indicator 气流指示器 air-flow meter 空气流量计 air-flow sensor 空气流量传感器 ...
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Air flow indicator tests 烟雾测试
air-flow w indicator 气流指示器
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Flexible control, the motor adjust air flow can be single period of speed , three or five periods of speed. It is also enclosed operation, abnormal indicator and abnormal dry contact for control.
灵活的控制方式，可作单段速、三段调速、五段调速或无级调速调节风量并附运转/异常指示灯/异常干接点，便于监控；
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