程控交换机 chéng kòng jiāo huàn jī

DEFINITIONS

  1. electronic switching system (telecom.)
  2. stored program control exchange (SPC)

CHARACTERS

程 chéng
HSK 4
journey, trip; schedule, agenda
控 kòng
HSK 5
accuse, charge; control
交 jiāo
HSK 4
mix; intersect; exchange, communicate; deliver
换 huàn
HSK 3
change
机 jī
HSK 1
desk; machine; moment