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TDR(Time Domain Reflectometry)
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TDR ¹æ½ÄÀÇ ´ëÇ¥ÀûÀÎ Åä¾ç¼öºÐ¼¾¼·Î´Â Campbell »çÀÇ Åä¾ç¼öºÐ¼¾¼°¡ ÀÖ°Ú½À´Ï´Ù.
http://blog.naver.com/sta_corp/220241166027
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http://blog.naver.com/sta_corp/220248591141