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〈外〉同“per annum”；“per ann.”的变体
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direct-coupled circuit
direct-coupled computer
direct coupled computer
direct coupled displacement type heart-sound microphone
direct coupled displacement type heart sound microphone
direct-coupled driver triode
direct-coupled exciter
direct coupled exciter
direct-coupled FET logic
directcoupledfetlogic
direct-coupled flip-flop
direct coupled flipflop
direct coupled flip-flop
direct coupled flip flop
direct coupled generator
direct-coupled generator
direct coupled leakage power
direct-coupled logic
direct-coupled machine
direct coupled machine
direct coupled motor drive
direct-coupled oscilloscope
direct coupled plow
direct-coupled power amplifier
direct-coupled power amplifier tube
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更新时间：2026/9/14 14:17:28