pdfa

英 [pdfa]
美 [pdfa]

中文释义

abbr. Partnership for a Drug-Free America 美国禁毒合伙企业; praseodymium-doped fiber amplifier 掺镨光纤放大器

单词分析

单词结构：

pdfa

字母数：4

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🎯 重点记忆：

  • 单词拼写：pdfa
  • 核心含义：abbr. Partnership for a Drug-Free America 美国禁毒合伙企业; praseodymium-doped fiber amplifier 掺镨光纤放大器

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更新时间：2026-01-01 06:04:31