Energy transformations go on constantly, all about us.

在我们周围，能量始终在不停地转换着。

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A city electric-power plant affords an illustration of complicated transformations of energy.

城市发电厂提供了说明能量转换复杂关系的例子。

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We are also familiar with other transformations of energy.

我们还熟悉别的能量转换现象。

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The Navy has always led in energy transformations, moving from wind to coal, coal to oil, and then pioneering the use of nuclear power.

WHITEHOUSE: Advancing National Security Through Energy Security

If it cannot be made to work commercially, and at a reasonable cost, then the UK would have to spend much more on renewable energy, nuclear power and other economic transformations, and would face having to make enormous cuts in areas such as emissions from air travel.

FORBES: Getting the Economics of Climate Change Entirely Wrong: Clean Coal Might Be Too Expensive To Use