permitted explosive for coal mine

英 [permitted explosive for coal mine]
美 [permitted explosive for coal mine]

中文释义

煤矿许用炸药

单词分析

单词结构：

permitted explosive for coal mine

字母数：33

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  • 单词拼写：permitted explosive for coal mine
  • 核心含义：煤矿许用炸药

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更新时间：2026-02-04 08:57:46