交换机 (jiāo huàn jī) — switchboard (telephone exchange equipment)

定義

例文

• 公司的交换机出了故障，电话都打不通了。
  Gōng sī de jiāo huàn jī chū le gù zhàng, diàn huà dōu dǎ bù tōng le.
  The company's switchboard broke down, and none of the phones could get through.
• 他以前在电信局负责维护交换机。
  Tā yǐ qián zài diàn xìn jú fù zé wéi hù jiāo huàn jī.
  He used to be responsible for maintaining the switchboard at the telecommunications bureau.
• 新大楼安装了数字交换机，通话质量更好了。
  Xīn dà lóu ān zhuāng le shù zì jiāo huàn jī, tōng huà zhì liàng gèng hǎo le.
  The new building has installed a digital switchboard, so the call quality is better.