问题 问答题 简答题

如何对炉膛进行吹扫?

答案

参考答案:

自动方式:热媒炉正常起炉后,在时序控制器的控制下,主风道风门将逐渐打开,在最大开度处停留大约40秒钟,然后再回到最小的风门开度,准备点火运行;

手动方式:将比例控制伺服电机与主风道连杆一端上的螺栓、螺母松开,使比例调节器的锁定开关打到"解除"位置,手动操作比例调节器的手柄,达到要求位置后将锁定开关扳到"锁定"位置。

选择题
阅读理解

The physicians in a hospital form the center of medical staff. But they could not provide effective medical care to their patients without the help of numerous other medical employees. From the viewpoint of the patients, the nursing staff is particularly important. Nurses are usually in close contact with patients as long as they are in the hospital.

A nurse does not study for as many years as a doctor. however, each must be equally dedicated. Caring for sick persons requires a great deal of patience and concern. Most nurses work long days, and they often must work at odd hours or during the night.

Under the supervision (监管) of the head nurse, the nursing staff must provide nursing services on a 24-hour basis and attend to patients’ needs. This responsibility continues around the clock, and so nurses must work in shifts. A shift is a period of duty, usually eight in length. The nurses on the ward rotate their shifts. Some take turns working night duty; others work odd shifts.

A nurse must always be alert. She can never afford to be careless. This is true in all nursing situation, but it is especially true in the intensive care unit. Patients under intensive care are critically ill, and they must be monitored at all times. The nurses who do intensive care duty have one of the most demanding jobs in the hospital.

Serving as a nurse can be a very rewarding job. But it is not an easy one. Not every person is suited to become a nurse. Only very dedicated people have chosen nursing as a profession.

小题1:The nursing staff ________.

A.are central to the medical staff

B.play an important role in caring for patients

C.can work effectively without physicians

D.are always in close contact with the patients小题2:Why don’t nurses study for as many years as doctors?

A.They don’t treat patients for illness and injury.

B.Most nurses work long days.

C.Caring for sick patients requires patience and concern.

D.They are not dedicated.小题3:Nurses work in shifts because ________.

A.they are careless.

B.nursing services must be provided continuously.

C.they work at night from time to time.

D.a shift is usually eight hours long.小题4:What kind of person is suited to become a nurse?

A.A very careful person.

B.An able person.

C.A very dedicated person.

D.A specially trained person.