pdfa
查询英语单词中文释义、音标、发音和例句。
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
记忆提示
🎯 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:2026-08-29 23:36:47