问题 问答题 简答题

安装大钩水龙头的操作步骤有哪些?

答案

参考答案:

(1)用电(气)动小绞车把大钩提环提正。

(2)取下游动滑车吊环销子,打开吊环。

(3)慢慢下放游车,并配合推拉游车使大钩提环进入游车的吊环内。

(4)在无压紧的情况下,扣上游车吊环。穿好吊环大销子,戴好螺帽上好保险销;起游车提起大钩。

(5)把水龙头吊坐在转盘上。

(6)打开大钩,缓慢下放至适当位置使水龙头的提环进入大钩内,轻轻起车上提使大钩自动扣合。

(7)下放大钩,检验水龙头挂合是否牢靠。

阅读理解

阅读理解。

     In England, traffic keeps on the left. Cars and buses and bikes all move on the left side of the road.

So when you are in England, you must be very careful in the streets. Before you cross a street you must

stop and look both ways. Look right and look left and look right again. If the traffic lights are red, the

traffic must stop. Then the people on foot can cross the road. If the traffic lights are green, the traffic

can go. People on foot mustn't cross. 

     In the morning and in the evening, when people go to or come from work, the streets are very busy.

Traffic is the most dangerous then.

     When you go by bus in England, you have to be careful, too. Always remember the traffic moves on

the left. Have a look first or you will go the wrong way.

      In many English cities, there are big buses with two floors. You can sit on the second floor. From

there you can see the city very well. It's very interesting.

1. When you are in English you must remember that _____.[ ]

A. you'd better go by bus

B. the traffic goes on the left

C. the streets are very busy

D. there are many cars and buses on the road

2. People on foot can go across the road when _____. [ ]

A. the traffic lights are red

B. they look to the right

C. they come from work

D. the traffic lights are yellow

3. When you go by bus in England, you must be careful because _____.[ ]

A. you may go the wrong way

B. there are too many buses there

C. there are big buses with two floors

D. there are not any traffic lights

4. Some people enjoy sitting on the second floor of a big bus because ______. [ ]

A. it is less dangerous

B. it can make roads safer

C. they can have a better view of the city

D. there are fewer passengers there

5. The best title for this passage is _____.[ ]

A. Buses in England

B. Traffic in England

C. Traveling in England

D. Traffic Lights in England

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