class-of-service tone

英 [class-of-service tone]
美 [class-of-service tone]

中文释义

[通信] 服务等级信号音

单词分析

单词结构：

class-of-service tone

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：class-of-service tone
  • 核心含义：[通信] 服务等级信号音

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更新时间：2025-12-10 05:26:39