There is no way to differentiate among the various structures along the path, since attenuation is the total result of the tin/lead in solder, trace tinning, copper, and internal metal layers.
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释义
是没有办法去分辨其中的各种结构沿着路径,因为是衰减的总成果锡/铅焊料,镀锡微量元素,铜,内部金属层。
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