gassy mine

短语词组

短语

• gassy outburst mine 高突矿井
• gassy y mine 瓦斯矿
• highly gassy mine 高瓦斯矿井
• slightly y gassy mine 低级瓦斯矿
• second category gassy mine [矿业]二级瓦斯矿
• first category gassy mine 一级瓦斯煤矿
• low gassy mine 低瓦斯煤层
• very gassy mine 超级沼气矿
• slightly gassy mine 低级瓦斯矿
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