为了防止进口蒸汽带水应采用哪些措施?
参考答案:
1、汽轮机进口压力不稳时,特别注意蒸汽温度的变化。
2、通知锅炉强化操作,提高蒸汽温度。
3、启动前应按照规程充分暖管,暖机。
孕妇的氮平衡为
A.摄入氮=排出氮
B.摄入氮>排出氮
C.摄入氮<排出氮
D.摄入氮≥排出氮
E.摄入氮≤排出氮
I will give _____ students _____ minutes for them to finish their exercise. [ ]
A. the other; other five
B. the other; another five
C. other; five more
D. other; more five