能量守恒定律 conservation of energy ; [物] law of conservation of energy ; energy conservation law ; [物] law of energy conservation

能量守恒 [物] conservation of energy ; [物] energy conservation ; preservation of energy ; conserv of energy

能量守恒原理 [物] principle of conservation of energy ; energy conservation principle ; conservation of energy principle

能量守恒律 law of conservation of energy ; principle of conservation of energy ; energy conservation law

能量守恒方程 [物] energy conservation equation ; conservation equation of energy ; energy equation

能量守恒科学 science of conservation of energy

能量守恒方程式 equation energy-conservation

按照能量守恒定律 perpetual motion machine