helium purification

英 [helium purification]
美 [helium purification]

中文释义

净化

单词分析

单词结构：

helium purification

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：helium purification
  • 核心含义：净化

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更新时间：2026-01-29 20:08:03