Medium-Frequency Signal Propagation Characteristics of a Lifeline as a Transmission Line in Underground Coal Mines

Medium-Frequency Signal Propagation Characteristics of a Lifeline as a Transmission Line in Underground Coal Mines

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Jan 5, 2025 - 00:20
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Medium-Frequency Signal Propagation Characteristics of a Lifeline as a Transmission Line in Underground Coal Mines
Medium-Frequency Signal Propagation Characteristics of a Lifeline as a Transmission Line in Underground Coal Mines

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