pitted perforation

英 [pitted perforation]
美 [pitted perforation]

中文释义

孔纹穿孔, 孔纹

单词分析

单词结构：

pitted perforation

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：pitted perforation
  • 核心含义：孔纹穿孔, 孔纹

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更新时间：2026-01-31 01:35:41