conservation of mass

基本解释

We invoke Dalton's Law of molar proportions, we write it subject to conservation of mass.
我們援引了摩爾分數的道爾頓定律，要服從質量守恒定律。
This paper defines what the law of conservation of mass means and its application in Junior chemistry.
論述了質量守恒定律的內涵，及其在中學化學解題中的應用。
Conservation of mass, second Newton's law, and momentum law are introduced into traffic flow to set up traffic continuity equation, Euler's equation, and momentum integral equation.
應用物理學中的質量守恒定律、牛頓第二定律、動量定律等，建立了交通流的連續性方程、歐拉方程和動量方程；

So, what's the conservation of mass if we divide by the atomic masses here?
那麽質量守恒是什麽呢？,如果我們在這兒按原子質量劃分？
麻省理工公開課 - 固態化學導論課程節選
We invoke Dalton's Law of molar proportions, we write it subject to conservation of mass.
我們援引了摩爾分數的道爾頓定律，要服從質量守恒定律。
麻省理工公開課 - 固態化學導論課程節選
We write it subject to conservation of mass.
要服從質量守恒定律。
麻省理工公開課 - 固態化學導論課程節選

the principle that the total mass of any isolated system is constant and is independent of any chemical and physical changes taking place within the system