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sighting tube
sighting tube
英
[sighting tube]
美
[sighting tube]
中文释义
观测管
单词分析
单词结构:
sighting tube
字母数:13
记忆提示
🎯 重点记忆:
单词拼写:sighting tube
核心含义:观测管
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更新时间:2026-01-06 20:54:32