问题 问答题 简答题

试述DK-1电动制动机空气操作时如何让转换?

答案

参考答案:

(1)将空气制动阀背面的转换键471(472)的本端健扳至“空气位”(2)j将空气柜上的电——空转换塞门153扳置“空气位”(3)将分配阀缓解塞门156开放,(4)将调压阀门53(54)调整到制动管所规定的压力500KPa或600KPa(5)将电空制动控制器手柄放运转位,不得随意扳动。

阅读理解

At the moment when looking round the world, all kinds of dance performances are being offered. There are competitions that claim to be a World Cup or World Championship, and the young dancer or the dance teacher who wants to enter his students might be quite confused. Which is which? Which is of high standard and good quality, and which is not worth going to? First of all it has clearly got to be distinguished between the different styles of dance and the purpose of such competitions. When a person wants to learn classical ballet, he or she would never dream of going to a ballroom teacher. Such a teacher might even have been world champion in his ballroom dancing, but he would definitely not be qualified in teaching proper classical ballet.

People in Britain and the USA are taking more interest in modern dance. Dance classes of all kinds are popular; the audiences going to watch modern dance companies are also larger. And perhaps the most popular modern dance company in Britain is the Ballet Rambert.

The Ballet Rambert is Britains’ oldest established dance company which began in 1926. In the 60 s the company lacked the money to go on staging big productions. The directors wanted to encourage new talent and to keep up their high standards. A change of direction was necessary. They decided to give the ballet a ‘new look” in 1966. The aim was to provide a chance for new talent – for musicians and designers as well as dancers – and to show dance as a contemporary art form. And although some of the company’s previous fans dislike the change, new audiences came to see the productions.

The modern dance pieces and modern music found unexpected popularity. In the 21 st century the Ballet Rambert was a great success in London’s West End. The company became a focus for new, progressive talent in the art.

Then, the Ballet Ramvert started to introduce young people to modern dance by giving performances at schools, which again, was a success.

The Ballet Rambert has managed to make modern dance popular while creating original and often avant – garde (标新立异) productions. It can claim to be the oldest dance company in Britain and at the same time one of the most modern!

小题1:If a person wants to learn classical ballet, he or she will go to         .

A.the Ballet Rambert

B.a ballroom teacher

C.a world champion

D.a qualified school小题2:The underlined phrase “new talent” in Para. 3 probably means         .

A.new programs

B.new audiences

C.avant – garde productions

D.skilled young dancers小题3:From the passage we know that the Ballet Rambert          .

A.has succeeded in making modern dance popular

B.wanted to become the oldest dance company

C.was once a popular dance company

D.changed old dance into new ones小题4:This passage is mainly about          .

A.the popularity of modern dance

B.the introduction to new modern dancers

C.the development of the Ballet Rambert

D.the high standard of dance performances

单项选择题