热力学第一定律 热力学第一定律主要说明热能与机械能在转换过 程中的能量守恒 The first law of thermodynamics is viewed as the Conservation of energy principle which governs the energy transfer process from thermal energy to mechanical ones热力学第一定律主要说明热能与机械能在转换过 程中的能量守恒 The first law of thermodynamics is viewed as the Conservation of energy principle which governs the energy transfer process from thermal energy to mechanical ones. 热力学第一定律