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approach obstruction signal
approach obstruction signal
英
[approach obstruction signal]
美
[approach obstruction signal]
中文释义
遮断预告信号机
单词分析
单词结构:
approach obstruction signal
字母数:27
记忆提示
🎯 重点记忆:
单词拼写:approach obstruction signal
核心含义:遮断预告信号机
最近查询:
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更新时间:2026-02-06 13:49:46