汽轮机正胀差的含义描述错误的是()。
A、转子膨胀大于汽缸膨胀的差值;
B、汽缸膨胀大于转子膨胀的差值;
C、汽缸的实际膨胀值;
D、转子的实际膨胀值。
参考答案:B, C, D
She was nearly well-known to everyone because of the that she played in the film.
A.work
B.section
C.scene
D.role
弹簧管压力外壳直接在()mm以上的规格主要用作标准压力表。
A.φ40
B.φ60
C.φ100
D.φ150