Thus, controlled thermonuclear fusion reaction can be is the best source of energy.

因而，受控热核聚变反应能是最理想的能源。

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Wind power is widely seen as the source of renewable energy with the best chance of competing with fossil-fuel power stations in the near term.

近期，风力被广泛认为是有最好机会可以和化石资源发电站抗衡的可再生能源资源。

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Nevertheless, many environmentalists fiercely resist any moves to ease arbitrary, prohibitive barriers to the construction of the best non-carbon-dioxide-producing energy source of all: nuclear power plants.

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Honestly, this is no big deal with lightweight in-ears, but many audiophiles prefer cans with open-backs or higher impedances, which respond best to an abundance of energy from the source device.

ENGADGET: Smartphones for audiophiles: is the iPhone 5 more musical than its rivals?