The result shows that selecting proper location of FFUs, appropriate mode of outlet and high level terminal filter, higher cleanliness level can be obtained in spite of lower coverage rate.
The comparison results of the bump inlet with opening terminal and with rotating fan at the outlet indicate that the electromagnetic scattering comes mostly from the mouth of inlet.
终端开口与转动风扇的比较表明，无隔道进气道的后向散射主要来源于外罩唇口的电磁波散射。
3
Explosion-proof flexible connecting pipes is used in explosion-proof telephone station, explosion-proof terminal, explosion-proof loud-speaker inlet or outlet to conduit and protect the cable.