试分析钢包炉脱硫的有利条件。
参考答案：
根据钢包炉的工作原理和特点可知钢包炉的处理环境为还原性气氛，这给脱硫创造了良好的外部条件。同时，钢包炉处理过程主要包括埋弧加热、造碱性渣、吹氩搅拌等工艺，这又给脱硫创造了内部条件。因此，依据脱硫的原理，钢包炉既具有高温、高碱度、低FeO的热力学条件，又具有搅拌的动力学条件，对于脱硫都是十分有利的。所以说钢包炉具有较强的脱硫能力。
| 完形填空。 | ||||
| Sometimes I think Dad loves that dog more than he loves us, 1 I don't get jealous when Dad spends time with his 2 . When Dad takes his family out for a picnic, Pluto always gets to go along anyway. The moment Dad arrives from the office, he 3 in a room or behind the door and yells, "Pluto, come and get me." Pluto 4 runs around trying to find his lost 5 . Pluto usually wins and his victory is celebrated with his favorite biscuits. Dad's 6 with Pluto are like the dog isn't a dog at all but another human being and that's the scary part. Has Dad 7 the ability to distinguish (区别) between a man and an animal? I was 8 enough about this. So one day I gathered my 9 and asked him. "Dad, do you know you talk to that dog of yours just like to a human being?" Dad looked me 10 in the eye. I thought he might be 11 at my question. But he just smiled, reached out and patted my head and said, "Yes I do,and the reason is 12 . If I talk down to him, he doesn't 13 me but if I carry on a normal conversation, then Pluto 14 everything I say." I stood there wanting to ask more 15 , but decided that was not the best time. And so for a few days, I 16 everything I could about my father and the dog. And I know the dog never receives direct 17 . He never hears sit, lie down or anything like that. What he 18 are suggestions, "Would you like me to feed you now? Shall we go for a walk?" What's amazing is that Pluto does 19 everything Dad says. Their communication is as near to being perfect as possible. And it's not 20 Pluto that understands, but it's Dad, too. Each seems to know what the other needs at any time. | ||||
|