Bell code
Bell codes or Buzzer codes (US Communication Signal Appliance codes) are a series of bells or buzzers used on passenger trains for communication between the driver and guard.
| 单词 | Bell code |
| 释义 |
Bell code
英语百科
Bell codeBell codes or Buzzer codes (US Communication Signal Appliance codes) are a series of bells or buzzers used on passenger trains for communication between the driver and guard. |
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英汉双解词典包含3607232条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。