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manual telephone system meaning in English

人工电话系统

Examples

  1. The specification and test methods for manual telephone system for railway
    铁路人工话务系统设备技术要求和试验方法

Related Words

  1. manual typewriter
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  5. flight manual
  6. manual control
  7. manual equalizer
  8. manual examination
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  10. manual synchronizing
  11. manual telephone switch board
  12. manual telephone switchboard
  13. manual telex service
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