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In addition, a reversible heat engine operating between temperatures ''T''<sub>1</sub> and ''T''<sub>3</sub> must have the same efficiency as one consisting of two cycles, one between ''T''<sub>1</sub> and another (intermediate) temperature ''T''<sub>2</sub>, and the second between ''T''<sub>2</sub> and''T''<sub>3</sub>. This can only be the case if
In addition, a reversible heat engine operating between temperatures ''T''<sub>1</sub> and ''T''<sub>3</sub> must have the same efficiency as one consisting of two cycles, one between ''T''<sub>1</sub> and another (intermediate) temperature ''T''<sub>2</sub>, and the second between ''T''<sub>2</sub> and''T''<sub>3</sub>. This can only be the case if
In addition, a reversible heat engine operating between temperatures T<sub>1</sub> and T<sub>3</sub> must have the same efficiency as one consisting of two cycles, one between T<sub>1</sub> and another (intermediate) temperature T<sub>2</sub>, and the second between T<sub>2</sub> andT<sub>3</sub>. This can only be the case if
In addition, a reversible heat engine operating between temperatures T<sub>1</sub> and T<sub>3</sub> must have the same efficiency as one consisting of two cycles, one between T<sub>1</sub> and another (intermediate) temperature T<sub>2</sub>, and the second between T<sub>2</sub> andT<sub>3</sub>. This can only be the case if
Now consider the case where <math>T_1</math> is a fixed reference temperature: the temperature of the triple point of water. Then for any T<sub>2</sub> and T<sub>3</sub>,
Now consider the case where <math>T_1</math> is a fixed reference temperature: the temperature of the triple point of water. Then for any T<sub>2</sub> and T<sub>3</sub>,
现在考虑如下情形，<math>T_1</math> 是一个固定的参考温度: 水的'''三相点 Triple Point'''的温度。则对于任意 T<sub>2</sub> 和 T<sub>3</sub>,
现在考虑如下情形，<math>T_1</math> 是一个固定的参考温度: 水的<font color="#FFD700">'''三相点 Triple Point'''</font>的温度。则对于任意 T<sub>2</sub> 和 T<sub>3</sub>,
and the reference temperature ''T''<sub>1</sub> will have the value 273.16. (Any reference temperature and any positive numerical value could be used{{snd}}the choice here corresponds to the [[Kelvin]] scale.)
and the reference temperature ''T''<sub>1</sub> will have the value 273.16. (Any reference temperature and any positive numerical value could be used{{snd}}the choice here corresponds to the [[Kelvin]] scale.)
and the reference temperature T<sub>1</sub> will have the value 273.16. (Any reference temperature and any positive numerical value could be usedthe choice here corresponds to the Kelvin scale.)
and the reference temperature T<sub>1</sub> will have the value 273.16. (Any reference temperature and any positive numerical value could be used the choice here corresponds to the Kelvin scale.)
参考温度 ''T''<sub>1</sub> 的值为273.16。（任何参考温度和任何正值均可用——此处的选择对应开尔文标度。）
参考温度 ''T''<sub>1</sub> 的值为273.16。（任何参考温度和任何正值均可用——此处的选择对应开尔文标度。）