If desired or needed, a vent fan and ozone destruct device can also be added.
如果需要或需要，一个排气口狂热者和新鲜的空气破坏装置也可能是附加的。
A third vent fan in the side of the PC, often located over the CPU, is also common.
第三个喷口风机一侧的电脑，往往设在中央处理器，也很普遍。
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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