alternate light and heavy line method

英 [alternate light and heavy line method]
美 [alternate light and heavy line method]

中文释义

螺纹正规符号画法（美式）

单词分析

单词结构：

alternate light and heavy line method

字母数：37

记忆提示

🎯 重点记忆：

  • 单词拼写：alternate light and heavy line method
  • 核心含义：螺纹正规符号画法（美式）

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更新时间：2026-02-04 15:42:31