The paper emphasizes analysing the designing principle at the bottom cycle of hrsg 重点分析底循环中的余热锅炉设计原则，并通过具体实例加以说明。
2.
And it illuminates the difference between mini - type and middle or big combined gas - steam cycle ' s bottom cycle 阐明小型或微型燃气蒸汽联合循环与中等型或大型燃气蒸汽联合循环在蒸汽底循环中的差别。
