vertical shaft development system

英 [vertical shaft development system]
美 [vertical shaft development system]

中文释义

竖井开拓

单词分析

单词结构：

vertical shaft development system

字母数：33

记忆提示

🎯 重点记忆：

  • 单词拼写：vertical shaft development system
  • 核心含义：竖井开拓

最近查询：

baby grand Barral's test bibliolater carrus character formation indexing & retrieving system Dreikikir E4P export letter of credit fearlessly groundage high-thrust rig independent evidence law of return lightly reinforced concrete naturary talent pastoring retirement-account sansonetti steeldrum water regulating function

更新时间：2025-12-09 06:50:47