first category gassy mine

英 [first category gassy mine]
美 [first category gassy mine]

中文释义

一级瓦斯煤矿

单词分析

单词结构：

first category gassy mine

字母数：25

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  • 单词拼写：first category gassy mine
  • 核心含义：一级瓦斯煤矿

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更新时间：2026-03-13 23:13:15