d-f

英 [d-f]
美 [d-f]

中文释义

abbr. tube double-flare tube 双极闪管

单词分析

单词结构：

d-f

字母数：3

记忆提示

🎯 重点记忆：

  • 单词拼写：d-f
  • 核心含义：abbr. tube double-flare tube 双极闪管

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更新时间：2026-01-30 17:56:33