We have energy conservation laws, do we have water conservation laws?

我们有能量守恒定律，有水量守恒定律嘛？

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This principle, called conservation of energy, is one of our most cherished laws of physics.

这一原理，也即能量守恒，是物理学中最宝贵的定律之一。

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Design and testing of these physical systems rely on standard design practices that employ the laws of conservation of force, mass, and energy.

这些物理系统的测试依赖于对作用力、质量和能量守恒定律的标准设计实践。

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Now, as the nation seeks to increase its production of domestic energy, wind energy developers and wildlife agencies have recognized a need for specific guidance to help make wind energy facilities compatible with eagle conservation and the laws and regulations that protect eagles.

FORBES: 5 Steps To Keep Your Wind Farm From Killing Eagles

It looks like the laws of gravity, and conservation of energy, have been suspended.

WSJ: Bothered and Bewildered