counterboring with step core drill

[counterboring with step core drill]
[counterboring with step core drill]

中文释义

阶梯扩孔

单词分析

单词结构:

counterboring with step core drill

字母数:34

记忆提示

🎯 重点记忆:

  • 单词拼写:counterboring with step core drill
  • 核心含义:阶梯扩孔