PSDN

常見例句

• Based on the introduction of the present situation for local PSDN the paper discusses the benefits and technical pian of opening POS service over PSDN.
  在介紹本地分組交換數(shù)據(jù)網(wǎng)現(xiàn)狀的基礎上，對在該網(wǎng)上開放POS業(yè)務的好處及有關技術方案進行了討論。
• PSDN Public Switched Digital Network
  公共交換數(shù)字網(wǎng)
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