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单词 pulse-time modulation
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pulse-time modula′tion  (pulstīm′),USA pronunciation [Electronics.]
  1. Telecommunications, Radio and Televisionradio transmission in which the carrier is modulated to produce a series of pulses timed to transmit the amplitude and pitch of a signal. Abbr.: PTM
  • 1940–45

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