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invention of improvement

英 [invention of improvement]
美 [invention of improvement]

中文释义

[专利] 改进(性)发明

单词分析

单词结构:

invention of improvement

字母数:24

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🎯 重点记忆:

  • 单词拼写:invention of improvement
  • 核心含义:[专利] 改进(性)发明

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更新时间:2025-12-23 14:25:00

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