Chen Zhongfan, Geng Dafu. A STUDY ON LIGHTNING PREVENTION OF TELEPHONE LINE TRANSMISSION OF MICROSEISMOGRAPHS[J]. North China Earthquake Sciences, 1995, 13(4): 70-74.
Citation: Chen Zhongfan, Geng Dafu. A STUDY ON LIGHTNING PREVENTION OF TELEPHONE LINE TRANSMISSION OF MICROSEISMOGRAPHS[J]. North China Earthquake Sciences, 1995, 13(4): 70-74.
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A STUDY ON LIGHTNING PREVENTION OF TELEPHONE LINE TRANSMISSION OF MICROSEISMOGRAPHS

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    • Abstract
  • This paper, by analysis of lightning dischange.has studied and solved the problem on lightning prevention of telephone line transmission of microseismographs, and introduced "DBL-l" lightning prevention meter.
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