He and some of his grad students wanted to use nitrous oxide as an emissions-free energy source.

他和他班上一些大学生想利用氧化氮作为无排放的动力能源。

youdao

To the extent that the shale-gas success is repeated elsewhere, a vital source of energy will become available from an ever more diverse and numerous set of suppliers in increasingly free markets.

页岩气的成功开采比比皆是，这使得能源的主要来源，在日益增多的自由贸易市场中，变得更多样，选择也更多。

youdao

And nuclear is hardly the only energy source that hasn't stood up in the free market once you factor in the external costs.

考虑到外部的成本因素，所以核电到目前为止是唯一还没能在自由市场上自主建设的能源。

youdao

Wind is certainly not a competitive free market source of energy, or a charity we can continue to afford.

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Nukes may not be quite as clean as wind, solar or geothermal, but they provide a carbon-free and domestic source of energy that produces lots of jobs.

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Not everyone is convinced that wind-power is the most reliant route to clean, renewable carbon-free energy, and it is concerning that Britain is relying on a power source that must be backed up by more constant technologies such as nuclear, coal, or gas, because the wind blows inconsistently, as is its nature.

FORBES: Wind Power Efforts May Not Be Enough For U.K.