The system uses a vent fan, a manually adjustable backpressure damper, a differential pressure-sensing gage, and an inlet air filter high differential pressure alarm switch.
此系统用一个排气扇，手动调节反压闸，压差传感器和一个进气过滤器压差高报警开关。
Buy some copper screen and cut out pieces to go over all vent openings and the fan exhaust hole.
购买一些编织铜网，割成片状，包裹所有的机箱开口和散热风扇孔。
Buy some copper screen and cut out pieces to go over all vent openings and the fan exhaust hole.
购买一些编织铜网，割成片状，包裹所有的机箱开口和散热风扇孔。
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