direct secondary distress alerting network

英 [direct secondary distress alerting network]
美 [direct secondary distress alerting network]

中文释义

[网络] 直接第二遇险报警系统

单词分析

单词结构：

direct secondary distress alerting network

字母数：42

记忆提示

🎯 重点记忆：

  • 单词拼写：direct secondary distress alerting network
  • 核心含义：[网络] 直接第二遇险报警系统

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更新时间：2026-04-13 13:25:02