ppth (parts per thousand)

英 [ppth (parts per thousand)]
美 [ppth (parts per thousand)]

中文释义

分率

单词分析

单词结构：

ppth (parts per thousand)

字母数：25

记忆提示

🎯 重点记忆：

  • 单词拼写：ppth (parts per thousand)
  • 核心含义：分率

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更新时间：2026-02-07 11:46:36