短語詞組短語co degasification co2 脫氣degasification character 放氣特性degasification processing 除氣処理goaf degasification 採空區(qū)脫氣atmospheric degasification 常壓脫氣degasification temperature 脫氣溫度vacuum degasification 真空脫氣apparatus degasification 脫氣裝置film degasification 薄膜除氣 返回 degasification