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thermionic vacuum tubes
thermionic vacuum tubes
英
[thermionic vacuum tubes]
美
[thermionic vacuum tubes]
中文释义
热离子真空管 (thermionic vacuum tube 的复数)
单词分析
单词结构:
thermionic vacuum tubes
字母数:23
记忆提示
🎯 重点记忆:
单词拼写:thermionic vacuum tubes
核心含义: 热离子真空管 (thermionic vacuum tube 的复数)
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更新时间:2026-02-05 13:09:19