短语词组短语gas recovery washing tower 废气回收洗涤塔gas -washing effluent 煤气洗涤污水gas s washing bottle 气体洗瓶Gas -washing b 供应gas s washing equipment 气体洗涤设备polluted water of gas -washing 煤气洗涤污水Gas washing water 煤气洗涤水;气体洗涤用水 返回 gas washing