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manual toll switching system meaning in Chinese

人工长途电话交换机

Related Words

  1. toll telephone network
  2. manual typewriter
  3. manual tool
  4. manual counts
  5. manual grading
  6. automatic manual
  7. chart manual
  8. field manual
  9. manual traverse
  10. manual rating
  11. manual toll recording
  12. manual toll switchboard
  13. manual toning control
  14. manual tool
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