thermodynamics

n. 热力学

German physicist noted for his contributions to the understanding of thermodynamics.

迈尔，尤里乌斯·罗伯特·冯1814－1878德国物理学家，为热力学研究作出很大贡献

Clearly, a refrigerator, which is a physical system must obey not only the first law(energy conservation) but the second law of thermodynamics as well.

很明显，冷冻机是一种物理系统，因此它不仅必须遵从第一定律（能量定恒），也必须遵从热力学的第二定律。