A great amount of BF gas fron small BF of local I & S enterprises is discharged except the small part for hot-blast stove.是什么意思_A great amount of BF gas fron small BF of local I & S enterprises is discharged except the small part for hot-blast stove.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句