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valve envelope
valve envelope
英
[valve envelope]
美
[valve envelope]
中文释义
电子管外壳
单词分析
单词结构:
valve envelope
字母数:14
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🎯 重点记忆:
单词拼写:valve envelope
核心含义:电子管外壳
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更新时间:2026-03-16 11:46:10