graded hardening

英 [graded hardening]
美 [graded hardening]

中文释义

分级淬火

单词分析

单词结构：

graded hardening

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：graded hardening
  • 核心含义：分级淬火

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更新时间：2026-01-06 19:04:48