Finally, the influence on the economy of the heat source temperature is presented.

最终本文提出了热源温度的经济性影响的问题。

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The results of the investigation show that under a relatively low heat source temperature the thermal and exergy efficiency of the system may attain in excess of 30%.

结果表明，在较低的热源温度下，系统的热效率和火用效率可以达到30 %以上；

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Otherwise, when the indoor heat source temperature is high, the radiation heat flux is the main factor and the radiant panel should be placed as near to the heat sources as possible.

当室内热源温度较高时，辐射板与热源的辐射换热量增大，辐射换热量为主导因素，因此应将辐射板布置在靠近高温热源的位置。

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Or I could have a non-adiabatic, I could take the same temperature change, by taking a flame, or a heat source and heating up my substance. So, clearly q is going to depend on the path.

也能改变温度，绝热指的是没有热传递，在非绝热条件下，也同样可以升温,比如用火或者热源加热，这样，q也应当与路径有关。

麻省理工公开课 - 热力学与动力学课程节选