问题
名词解释
汽轮机的轴向弹性位移
答案
参考答案:
汽轮机的弹性位移并不是指推力间隙而言,轴向弹性位移是由于推力室、推力瓦片的轴承座和垫片、瓦架在汽轮机负荷增大、推力增加时发生弹性变形而产生。因推力轴承的构造不同,各机组弹性位移的数值也有所不同。
汽轮机的轴向弹性位移
参考答案:
汽轮机的弹性位移并不是指推力间隙而言,轴向弹性位移是由于推力室、推力瓦片的轴承座和垫片、瓦架在汽轮机负荷增大、推力增加时发生弹性变形而产生。因推力轴承的构造不同,各机组弹性位移的数值也有所不同。
完形填空。 |
Ben and Jim are twin l . They are nine. They 2 in She Yang Primary School. They are in 3 class. Every day they 4 school and come back together. Their teacher, Mrs Green, says to the pupils(小学生), "Please write a composition(作文) 'My Mother'. " Jim is 5 good boy. He writes the composition 6 home. But Ben plays 7 football 8 his friends. The next day Mrs Green says to the class, "I read your compositions today. But two of yours 9 just the same." Ben stands up and says, "Jim and I are twins. We have the same 10 . " |
( ) 1. A. brother ( ) 2. A. study ( ) 3. A. the same ( ) 4. A. went to ( ) 5. A. a ( ) 6. A. at home ( ) 7. A. the ( ) 8. A. with ( ) 9. A. is ( ) 10. A. father | B. sisters B. studys B. same B. goes B. an B. in B. a B. and B. am B. mother | C. brothers C. studies C. some C. go to C. the C. at C. / C. at C. are C. parents |