graded bedding

英 [graded bedding]
美 [graded bedding]

中文释义

粒级层

单词分析

单词结构：

graded bedding

字母数：14

记忆提示

🎯 重点记忆：

  • 单词拼写：graded bedding
  • 核心含义：粒级层

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更新时间：2025-12-14 10:23:54