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thermionic vacuum tube
thermionic vacuum tube
英
[thermionic vacuum tube]
美
[thermionic vacuum tube]
中文释义
热离子真空管
单词分析
单词结构:
thermionic vacuum tube
字母数:22
记忆提示
🎯 重点记忆:
单词拼写:thermionic vacuum tube
核心含义: 热离子真空管
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更新时间:2026-02-04 18:33:55