问题
问答题 简答题
影响回转窑热工制度的因素有哪些？
答案
参考答案：
生料成份发生变化和波动较大，使耐火性改变；
喂料不均，操作上风煤未能及时调节造成窑温波动；
煤粉质量发生改变或喂煤不均，加减煤不及时；
风煤配合不当，煤粉不完成燃烧；
排风不合理，过小过大或变动频繁，使物料预热不均；
燃烧器位置不当；喂料量与窑速不对应；
掉大量窑皮时，操作不及时；操作不统一。
搜题请搜索小程序“爱下问搜题”
影响回转窑热工制度的因素有哪些？
参考答案：
生料成份发生变化和波动较大，使耐火性改变；
喂料不均，操作上风煤未能及时调节造成窑温波动；
煤粉质量发生改变或喂煤不均，加减煤不及时；
风煤配合不当，煤粉不完成燃烧；
排风不合理，过小过大或变动频繁，使物料预热不均；
燃烧器位置不当；喂料量与窑速不对应；
掉大量窑皮时，操作不及时；操作不统一。
When we donate blood, a small amount is usually taken in advance for at least ABO and Ph systems typing. If you are O+, the O is your ABO type and the + is your Rh type. It is possible to be A, B, AB, or O as well as Rh + or Rh-. The ABO system was discovered by Karl Landsteiner in the early 1900s. He was awarded the Nobel Prize for his achievements. There are four basic types of blood in the ABO system: A, B, AB and O. Everybody is born with one of these four types of blood. We get blood type, just like hair color and height from parents. Because of the substances(物质) contained in each type, the four groups must be transfused carefully, If two different blood types are mixed together, it may put a person into an extremely dangerous situation. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. In an emergency, type O blood can be given because it is most likely to be accepted by all blood types, so it is often called the universal donor. However, there is still a risk. For the opposite reason, AB is sometimes called the universal receiver. However, because there can be so many reactions in the blood bank of the hospital. There is a relationship between your blood type and your nationality. Among the Europeans, about 45 percent have type O while 42 percent have type A. The rarest is type AB. Other races have different percentage. For example, some American Indian groups have nearly 100 percent type O out of 100  donors in the world…
             A B A B A B A B   AB O AB O AB O AB OA B C D 2. The underlined word “transfuse” most probably means ________. A. to put the blood into a container B. to move the blood from one place to another C. to put  the blood of one person into the body of anotherD. to give power to another person 3. The writer suggests that the third most common blood type among the Europeans is ______. A. B B. A C. AB D. O 4 The text mainly tells us ______. A. about the basic types of human blood B. what kind of blood is the most common C. about Karl Landsteiner who won the Nobel Prize D. the relationship between blood type and nationality |