There was low nitrogen removal rate (18.8%) by endogenous respiration without carbon sources added.

当不投加外部碳源时（内碳源），通过内源呼吸代谢作用进行反硝化效果最差，脱氮率仅有18.8%。

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But it is unlikely that Yahoo would be interested in a deal right now, sources added, due to AOL's declining revenue.

但消息人士称，鉴于AOL的营收正不断下降，雅虎暂时不大可能对这一交易感兴趣。

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Generally, sodium silicate solutions are used for monomer sources added with caustic soda solutions for activation of leaching out of fillers.

通常以硅酸钠水溶液作为单体硅源，氢氧化钠溶液作为碱激发剂以提高原料的溶出性。

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Police sources added that they were stopped in Almuradiel, a town about midway between Madrid and the country's southern coast.

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One of the sources added that the cap was on backward and the man was also wearing a light-colored hooded sweatshirt and a black jacket.

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After that, they would be flown to Tehran, the sources added.

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