改变车身缝隙搭接部分的长度和拐角角度并不能保证提高其屏蔽效能，具体变化趋势与频率范围有关。
Changing neither the length of overlapping gap nor the Angle of turning corner can assure the rise in shielding effectiveness, rather the specific changing trend is related to frequency range.
强劲的RJ 45连接器也屏蔽防止电波干扰。
The robust RJ45 connectors are also shielded against electrical interference.
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