Often you will only require a single extra line of code, compared to atoms. The main advantage is coordination.

与atoms对比，它通常只需要一行额外的代码，其主要优势是协调。

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The perturbation was a single extra 'spike, ' or nerve impulse, introduced to a single neuron in the brain of a rat.

干扰是一个单独的额外尖峰信号或神经冲动，刺激小鼠的一个单独的神经元。

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In addition to the standard single extra attack you get with an off-hand weapon, you get a second attack with it, albeit at a –5 penalty.

精通双武器，增加标准一次性额外攻击在你的副手武器上，你得到第二次攻击紧接着前边的，虽然有一个-5的罚值。

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Formalized European backing has been able to give the single currency that extra leg up, but for how long?

FORBES: Euro Has Upside Here, But Beware The Tricks Of The Season

Verna says that she, too, has a single: worth the extra expense, because that way you can really relax.

NEWYORKER: Stone Mattress

To improve the efficiency of this process, he worked out a way of arranging permanent magnets so as to concentrate their combined fields in a single direction, providing extra oomph.

ECONOMIST: Maglev trains