2G

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Referring to standards before 2.5G. Includes GSM, DMA, TDMA, iDEN, and PDC. retronym
    — The entire rail network has long operated its own masts, used for communicating with drivers. But they are largely GSM. That's 2G to us -yesterday's tech.
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