守恒 shǒuhéng conservation Definitions Defs Origin Strokes Stroke Words Sentences Sents 守恒定律 shǒuhéngdìnglǜ conservation law a law in physics stating that a particular property does not change over time within an isolated system能量守恒 néngliàngshǒuhéng conservation of energy the principle in physics that the total amount of energy in an isolated system remains constant
