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directly-heated cathode
directly-heated cathode
英
[directly-heated cathode]
美
[directly-heated cathode]
中文释义
直热[式]阴极
单词分析
单词结构:
directly-heated cathode
字母数:23
记忆提示
🎯 重点记忆:
单词拼写:directly-heated cathode
核心含义:直热[式]阴极
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更新时间:2026-02-01 13:32:08