expiration of patent

英 [expiration of patent]
美 [expiration of patent]

中文释义

专利权期满

单词分析

单词结构：

expiration of patent

字母数：20

记忆提示

🎯 重点记忆：

  • 单词拼写：expiration of patent
  • 核心含义：专利权期满

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更新时间：2026-03-24 07:14:38