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Jyutping zung2 gei1
Pinyin zǒng jī

Definitions (CC-CEDICT)
  1. central exchange
  2. telephone exchange
  3. switchboard
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. noun
    switchboard, telephone exchange
    (syn.) 交換機, 交换机
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)