问题 问答题 简答题

阀门传动装置安装的基本要求有哪些?

答案

参考答案:

(1)连杆的长度一般不要超过40m。

(2)连杆与方向接头的两轴线的夹角一般不应超过30°。

(3)按照阀门热位移大小和方向装设适当补偿器。

(4)按照阀门明杆、暗杆等不同结构选择正确的连接方式。

(5)动作灵活、指示正确。

阅读理解

Bring the Family?

Port Regisis well situated for exploring the beautiful South and West of England and Wales.

The school has excellent hotels and guest houses nearby for parents who are dropping off or collecting their children from the school.

Please note:

All students attending English Country Schools must live in the appointed place.

We do not recommend that parents live locally while their child is at school.Experience suggests that this often upsets the child and disturbs progress.

Howard’s.House Country Hotel &Restaurant

About l5 minutes from Port Regis School,Howard's House is set in large gardens hidden in

the quietness of the lovely Nadder Valley.

Plumber Manor

Plumer Manor is a comfortable manor house built of local stones,situated about 20 minutes

from Port Regis School.The 17th century house is mounded by lawns and is set in quiet Dorset

countryside.The stream tuns through the grounds.

Woodville Farm Bed& Serf-catering

Woodville Farm is a family-runfarm set in the Dorset countryside about 5 minutes from

Port Regis School.Bed and breakfast accommodation:one double bedroom & one twin bedroom

both with bathrooms,tea & coffee making facilities,color television & hairdrye.There is also a

self-catering 2-bedroom bungalow(平房)nearby.

Stock Hill Country House Hotel & Restaurant

Stock Hill Country House Hotel & Restaurant is a late Victorian building set in eleven

acres of mature,beautifully planned grounds on the borders of Dorset,Somerset and Wiltshire.

About 10 minutes from Port Regis School.

60.The passage is mainly writen for         

A.students         B.general readers

C.paints           D.overseas trayelers

61.Parents are advised not to live locally when children are having classes because        

A.children are not too excited to be with their parents

B.parents stay with their children for too long

C.their visit makes children uneasy about themselves

D.their stay there affects children’s studies

62.If you prefer to live in a stone house,which hotel would you choose?

A.Plumber Manor.

B.Woodville Farm Bed&Self-catering

C.Heward House Country Hotel & Restaurant.

D.Stock Hill Country House Hotel & Restaurant.

63.Woodville farm is different from other hotels in that            

A  it is hidden in a large garden    B.guests can cook their own food

C.it dates back to Victorian times D.it has a very beautiful country scenery

单项选择题