positive variation

英 [positive variation]
美 [positive variation]

中文释义

正变分,正变差

单词分析

单词结构：

positive variation

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：positive variation
  • 核心含义：正变分,正变差

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更新时间：2026-03-24 12:00:59