Although this kind of heat preservation material used at low temperature performance is not affected, but not the economy.
虽然这种保温材料在低温部位使用，性能不受影响，但并不经济。
The analysis accurately finds out the weaknesses that influence the system performance and indicates the path for the system's improvement and the optimal design of the heat economy.
该分析准确找出了影响系统性能的薄弱环节，也为系统的改进和热经济优化设计及操作指明了方向。
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