盛产石油的国家（如安哥拉与尼日利亚），甚至连饱受战乱的国家苏丹都提供了飙升的增长数据，而且多数的外国投资都流入到了原油精炼行业。

Oil-producing countries such as Angola and Nigeria, and even war-torn Sudan, have supplied the soaring growth figures, and much of the foreign investment has gone into extractive industries.

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国际原子能机构的数据也表明，铀精炼的生产率下降了。

IAEA figures also showed the refining was less productive.

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此外，对近似的样本神经元进行合并，使用剪枝操作删除含坏数据的样本神经元，从而保证了算法的健壮性，并且精炼了网络结构。

Furthermore, similar example neurons are combined and neurons with bad data are cut to maintain robustness of the algorithm and simpleness of the network architecture.

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