spur wheel back gear

英 [spur wheel back gear]
美 [spur wheel back gear]

中文释义

正齿背齿轮

单词分析

单词结构：

spur wheel back gear

字母数：20

记忆提示

🎯 重点记忆：

  • 单词拼写：spur wheel back gear
  • 核心含义：正齿背齿轮

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更新时间：2025-12-17 00:45:13