| 1. | Any interchange will be governed by the conservation of energy .
任何交换过程都要服从能量守恒。 |
| 2. | Invariance under translation in time leads to conservation of energy .
在时间平移下的不变性导致能量守恒。 |
| 3. | Let's now examine this same feature within the context of energy conservation .
现在我们从能量守恒的角度来考察这同一特性。 |
| 4. | Under these conditions the conservation of energy is equivalent to the conservation of mass .
在这种条件下，能量守恒和质量守恒是相等的。 |
| 5. | In other examples, energy conservation may provide the easiest route to a solution .
在其他的例子中，能量守恒可能提供解题的最简易的方法。 |
| 6. | Conservation of energy is that energy can't be made or destroyed, it can only be transformed .
能量守恒意即能量既不能创造，也不能消灭，只能转化。 |
| 7. | In order for energy to be conserved, the final total kinetic energy must be greater than the initial by this amount .
要符合能量守恒原理，末总动能必须比初动能大这么多。 |
| 8. | The discovery that heat is a form of energy led to the postulate of a universal law of energy conservation .
热是能的一种形式这个发现，成为能量守恒这条普遍定律的出发点。 |
| 9. | Energy conservation in existing buildings
现有建筑物的能量守恒 |
