points locking devic
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points locking device
英
[points locking device]
美
[points locking device]
中文释义
[铁路] 道岔闭锁器
单词分析
单词结构:
points locking device
字母数:21
记忆提示
🎯 重点记忆:
- 单词拼写:points locking device
- 核心含义:[铁路] 道岔闭锁器
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更新时间:2026-08-27 21:12:44