何谓烧结矿(或球团矿)低温还原粉化性?
参考答案:
烧结矿(或球团矿)低温还原粉化性能是指矿石进入高炉炉身上部大约400~600℃之间的低温区还原时,产生粉化的程度。
— I am always feeling nervous before an exam.
— ________.Do believe your hard work will surely pay off.[ ]
A. Take your time
B. Take a good rest
C. Take it easy
D. Take your turn
制动液吸收水分后沸点将会下降。()