Based on the mass conservation law, the energy conservation law and some empirical equations, the dynamic model is built.

根据基本的质量守恒定律、能量守恒定律以及一些经验公式等建立了系统的动态数学模型。

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The aperture field distribution of the ring focus antenna is reviewed in view of the energy conservation law, and the simple formula for calculating its radiation pattern is deduced.

该文从能量守恒观点出发，讨论了副面为椭圆的环焦天线的口径场分布，并导出了计算其方向图的简单表达式。

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So when an experiment seems to violate the law of energy conservation, we are rightfully suspicious.

因此呢，当(我们做的)实验违背了能量守恒定律的时候，我们有充分的理由来质疑它。

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All right, now what we're going to learn next time and Bob Field is going to teach the lecture next time, is how heat and work are related, and how they're really the same thing, and how they're related through the first law, through energy conservation.

这节课就到这里,下节课将由Bob，Field讲授,我们将学习功与热量的关系，认识到它们在本质上的相同之处，并通过热力学第一定律，亦即能量守恒定律，把它们联系起来。

麻省理工公开课 - 热力学与动力学课程节选

The law of conservation of energy means that solar heat which warms the earth has to go somewhere.

ECONOMIST: The hole story of global warming

The law of the conservation of energy, so significant in science and philosophy, was formulated four times independently in 1847, by Joule, Thomson, Colding and Helmholz.

NEWYORKER: In the Air