问题 问答题 简答题

双级制冷系统的巡回检查路线及内容。

答案

参考答案:

氨压机:一、二级进出口温度、压力、油温、油压、油位各部位运转是否正常,轴封是否漏油、漏汽,冷却水量及流动是否正常。

氨油分离器:上、下温度,排油。

冷凝器:冷却水进出口温度,冷却水量,冷凝压力,出液温度。

贮氨器:压力、液位。

中间冷却器:压力、液位、排油情况。

蒸发器:冷冻盐水进水温度,蒸发压力,温度,搅拌器运转情况。

冷冻盐水泵:运转是否正常,冷冻盐水出水温度,电机温升。

改错题

短文改错。

      此题要求改正所给短文中的错误。并对标有题号的每一行作出判断:如有错误(每行只有一个错误),则按下列情况改正:

     该行多一个词:把多余的词用斜线( \ )划掉, 在该行右边横线上写出该词,并也用斜线划掉。

     该行缺一个词:在缺词处加一个漏字符号(∧), 在该行右边横线上写出该加的词。

     该行错一个词:在错的词下面划一横线(___),并在该行右边横线上写出改正后的词。

     注意:该行没有错的不要改。

Dear Alice,

    I have just got some good news to tell to you.         1.________

I win a national prize for painting last week.                2.________

My father was so pleasing that he suggested               3.________

I go to England for a holiday. I'd like to staying            4.________

there for half a month, visiting place of interest            5.________

or practicing my English as well. We've been               6.________

writing to each for nearly a year now. I have                7.________

often dreamed of talk face to face with you                  8.________

I imagine you'll be at vacation yourself by that              9.________

time. Perhaps we could goes out to do some                  10.               

Sightseeing together.

    Best wishes!

                                                            Lily

判断题