本文建立了超临界直流锅炉启动过程汽水膨胀的计算模型，并用试验进行了验证。
A mathematical model is set up for calculating the water swell in a supercritical pressure once through boiler during its start up.
本文探讨了以汽水混合物为工质的螺杆膨胀机的定熵膨胀功率特性，提出了峰值功率膨胀比的概念。
The power characteristics of a helical screw expander during its isentropic expansion was studied in detail with the concept of expansion ratio of peak power being proposed.
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