downward system of ventilation

英 [downward system of ventilation]
美 [downward system of ventilation]

中文释义

下向通风系统

单词分析

单词结构：

downward system of ventilation

字母数：30

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🎯 重点记忆：

  • 单词拼写：downward system of ventilation
  • 核心含义：下向通风系统

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更新时间：2026-01-02 07:09:38