汽轮机转子支承轴瓦的顶部间隙过大时,应如何处理?
参考答案:
可以进行局部补焊处理,对于有紧力垫的上瓦,可以适当刨削瓦口结合面或是更换上瓦。
血清转铁蛋白增高的是()
A.缺铁性贫血
B.肾病综合征
C.再生障碍性贫血
D.营养不良
E.恶性肿瘤
One of the things we have to do to prevent a pandemic is to make sure people understand and know what they can do to minimize the commotion .
A.command
B.collusion
C.turmoil
D.tutelage