gassy mine
短语词组
- 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 返回 gassy mine