当机组处于冷态、温态、热态、极热态启动时，锅炉如何控制各状态启动冲转参数？
参考答案：
各状态冲转参数见表2—3。
He doesn't have __________furniture in his room-just an old desk. [ ]
A. any
B. many
C. some
D. much
整体铸造混流式水轮机转轮的优点是：生产周期短，成本低，有足够强度。
