Screeningeffect relys upon both absorption loss and reflection loss.
屏蔽效果主要是靠吸收损耗与反射损耗。
2
The structure is simple, the screening efficiency is high, and the screeningeffect is good.
结构简单，分选效率高，分选效果好。
3
The low frequency screeningeffect against electromagnetic influence is very strong in urban areas because there are a lot of underground metallic pipes.