问题 问答题 简答题

电解液浓度和蒸汽消耗及生产能力的关系?

答案

参考答案:

在电解液蒸发中,加热蒸汽供热主要消耗在水分的蒸发上,当电解液浓度较低时,其含盐、水就大,需要蒸发的水量也越多,不仅增加汽耗,也影响生产能力,因此提高电解液浓度对蒸发有利,但电解液工序电流效率将降低,为降低综合能耗,各单位应根据实际情况确定一个最佳电解液浓度,据测定电解液浓度每提高1g/l,每吨碱蒸汽消耗下降30kg,电解液浓度每下降1g/l,生产能力下降1%~1.2%。

阅读理解

阅读理解。

     Climbing a mountain is hard work. But one step (脚步) after another finally brings a person to the

top. Along the way, he can stop and look around. And the higher he climbs, the more wonderful his view

is. If he keeps climbing, he will have a new world before him. He will have a new way to see everything.

     Now learning a foreign language is something like climbing a mountain. This new language can give

you a new view of life. And it is more than a look at the surface of things. It can open the way into

people's minds and hearts and into a culture that is very different from your own culture. This will make

you richer, richer in things that money can't buy. Even though you never set foot (踏上) on a ship or a

plane, you can be an armchair traveler through books.

     The mountain climber stops now and then to enjoy the scenery around him. Reading is just like this.

If you are interested in it, you will find fun in books.

1. Is climbing a mountain easy?

    ____________________________________________________________

2. What will he have if he keeps climbing?

    ____________________________________________________________

3. Can learning language open the way into people's minds and hearts?

   ____________________________________________________________

4. How will learning language make you?

    ____________________________________________________________

5. Where will you find fun if you are interested in reading?

    ____________________________________________________________

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