轴封蒸汽压力高有什么危害?
参考答案:
1)轴封冒汽;
2)蒸汽窜入油中,加热轴瓦,轴承温度升高,油中进水。
短文改错 (共10小题;每小题1分,满分10分)
文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加,删除或修改。
增加:在缺此处加一个漏字∧符号,并在其下面写出该加的词。
删除:把多余的词用斜线∕划掉。
修改:在错的词词下划横线,并在该词下面写出修改后的词。
注意: 1.每处错误及其修改均仅限一词。
2.只允许修改10处,多者不计分。
January 9th 2010 Monday Fine
It snowed last night. This morning the road was covered with snow. There was still a lot of bikes coming and going busily.
Suddenly I saw a woman fell off her bike. The woman lay on the ground and couldn’t get up. I ran up to her and tried help her get up. She sat up but still couldn’t stand up because she right leg was broken. In that moment, a policeman came over. When he saw this he called the taxi. The taxi driver drove the lady to the near hospital. I went with her to the hospital. There I telephoned the woman’s husband and said him the whole story. Seen the lady was well looked after. I said goodbye to her. Before I left, the lady thanked for me again and again. I felt as if I had grown up.
钻孔竣工后,应做哪些是善处理工作?