optical blacking

英 [optical blacking]
美 [optical blacking]

中文释义

光学黑色涂料

单词分析

单词结构：

optical blacking

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：optical blacking
  • 核心含义：光学黑色涂料

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更新时间：2026-01-30 22:49:22