law of energy conservation meaning in English

能量守恒定律

The discovery that heat is a form of energy led to the postulate of a universal law of energy conservation .
热是能的一种形式这个发现，成为能量守恒这条普遍定律的出发点。
In order to increase the accuracy and the widely use of fire spreading model , the paper base on the change state of temperature of the calculus on fire area , use the law of energy conservation , it can give the change of the temperature field ' s mathematical model on the fire area
摘要为了提高林火蔓延模型的准确性和通用性，文中把火场看作一个动态温度场，并从火场上任一微元体任一时刻温度变化状态出发，应用能量守恒定律，建立火灾区域温度场动态变化模型。