• A BTU is the amount of heat energy needed to raise the temperature of about one-half kilogram of a substance by one degree Fahrenheit.

    VOA: special.2010.11.23

  • All the energy that is inserted into this, which might be turbulence initially, becomes heat, or becomes -- it raises the temperature.

    由振动引起的所有,进入系统的能量最后都变成了热,因此温度便升高了。

    麻省理工公开课 - 热力学与动力学课程节选

  • All the energy that is inserted into this, which might be turbulence initially, becomes heat, or becomes -- it raises the temperature.

    由振动引起的所有,进入系统的能量最后都变成了热,因此温度便升高了。

    麻省理工公开课 - 热力学与动力学课程节选

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