短语词组短语gassy surface 疏松结构;表面不清析gassy water 含气水gassy milk 产气牛乳gassiness gassy 含气的high gassy 高瓦斯highly gassy 高瓦斯gassy pollutants 气态污染物gassy mine 瓦斯矿;沼气矿井gassy seam 瓦斯煤层 返回 gassy