First law of thermodynamics热力学第一定律;[热] 热力学第一定律
zeroth law of thermodynamics[热] 热力学第零定律;热力学零定律;零定律;翻译
general law of thermodynamics热力学普遍定律
Secondary Law of Thermodynamics热力学第二定律
the law of thermodynamics热力学定律
second law of thermodynamics[热] 热力学第二定律;热学第二定律;热力学第二定律英语;热能功学第二定律
third law of thermodynamics[热] 热力学第三定律;第三定律;翻译;热力学的第三定律
the third law of thermodynamics热力学第三定律
Chemistry first law of thermodynamics环境化学
N（名词） any of three principles governing the relationships between different forms of energy. The first law of thermodynamics (law of conservation of energy) states that the change in the internal energy of a system is equal to the sum of the heat added to the system and the work done on it. The second law of thermodynamics states that heat cannot be transferred from a colder to a hotter body within a system without net changes occurring in other bodies within that system; in any irreversible process, entropy always increases. The third law of thermodynamics (Nernst heat theorem) states that it is impossible to reduce the temperature of a system to absolute zero in a finite number of steps 热力学定律