double helical spur wheel

英 [double helical spur wheel]
美 [double helical spur wheel]

中文释义

人字齿轮

单词分析

单词结构：

double helical spur wheel

字母数：25

记忆提示

🎯 重点记忆：

  • 单词拼写：double helical spur wheel
  • 核心含义：人字齿轮

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更新时间：2026-02-04 07:59:03