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英语翻译A problem then exists with admitting steam to the turbin

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英语翻译
A problem then exists with admitting steam to the turbine inlet,which becomes more pronounced as
the initial temperature of the heat source is reduced.This is the matching of the temperatures of the heat
source and the working fluid in the boiler.This is best understood by referring to Fig.3,which shows how
the temperature of the working fluid and the heating source change within a boiler,when hot gases are
cooled from an initial temperature of 450–150 ◦C to heat pressurized water and evaporate it.
随着蒸汽进入透平机内部,届时会有一个问题暴露出来,尤其是在热源原始温度开始下降时特别明显,即锅炉内部的热源和工作介质的温度匹配问题.通过图3可以清晰地了解到这一点.图3展示了工作介质和热源在锅炉内部的能量变化过程.当受热的气体从最初的450度下降到150度时,引起了锅水受压升温并蒸发.