问题 问答题 简答题

简述启动旁滤器应注意哪些事项?

答案

参考答案:

1、检查控制柜电源有电。

2、检查减速机内的润滑油在油视镜的一半以上。

3、反洗时应先进水3~5分钟,视镜处观察纤维球已经完全浮起后,再启动搅拌机。

4、启动搅拌机时应有两人操作,一人在控制柜处启动,一人在搅拌机旁观察,一旦发现皮带打滑应立即停机,避免因打滑而损坏搅拌机皮带。

5、旁滤器控制柜门随时关闭锁好,避免雨水进入控制柜导致仪器仪表烧坏。

阅读理解

阅读理解。

     One day a heavy storm hit a village. Nothing was destroyed, but a rock fell from a nearby mountain.

The rock rolled down from the mountain and stopped in the middle of the main road in the village.

It was very big and shaped more or less like a ball. The village decided to move it since it was

blocking(阻塞)the street. Several of the strongest men in the village came to try to lift it out of

the road. No matter how hard they tried though, they couldn't move it.

     All of this time a young boy was watching the men trying to move the rock. “Excuse me,” he said,

“but I think I could move the rock.”

     “You?”they shouted. "What are you talking about? All of us have just tried, and even together

we can't move it a bit." They all laughed at the boy.

     The next morning some villagers came into the street. To their great surprise, the rock was gone!

More people ran out to see for themselves. It was true the rock wasn't in the road any more.

     The little boy stood in the street, smiling. “I told you I could move it,” he said. “I did it last night.

”Then he walked over to where the rock had been and uncovered some dirt with a shovel(铁锹).

 “You see,”he said, “I dug a deep hole next to the rock, and the rock rolled down into the hole of

itself. Then I covered it with dirt.”

1. The villagers decided to move the rock because______.

A. it was big and heavy.

B. it was completely useless.

C. it was more or less badly shaped.

D. it was in the middle of the road.

2. When the young boy said he could move the rock, the villagers_____.

A. were pleased with him.

B. didn't understand him.

C. didn't believe him.

D. got angry with him.

3. The young boy worked at night so as to______.

A. give the villagers a surprise.

B. work faster and better.

C. dig a hole for himself.

D. find a way to move the rock.

4. The boy removed the rock by______

A. pulling it out of the road.

B. burying it in a hole.

C. breaking it with a shovel.

D. lifting it out of the road.

填空题