invention of improvement

[invention of improvement]
[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

记忆提示

🎯 重点记忆:

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