如何装配电机联轴器?
参考答案:检查与转轴配合面要光滑、清洁;检查与转轴的间隙配合,在公差允许范围内;加热到250℃~300℃后套装;
Unfortunately the restaurant he recommended fell short of our _____. [ ]
A. expectations
B. advantages
C. opportunities
D. contributions
根据临床实践下颌骨体部骨折固定时间应该为()
A.2个月
B.3周
C.3个月
D.4周
E.10周