过几天将要召开中西论坛第二次会议，相信这次会议有助于双方进一步增进了解、扩大合作。
In a few days the second meeting of the China-Spain Forum will be held, and he believes that the meeting will help both sides to further enhance understanding and broaden cooperation.
汶川震区重建三年以来，泥石流、塌方等次生灾害在扩大，主要原因之一是重建工程和工矿企业新、扩建造成的二次破坏。 汪韬报道。
Three years after the Sichuan earthquake, the disaster zone remains perilously unstable as expanding mines and hasty reconstruction aggravate geological risks, writes Wang Tao .
本文使用二次型的理论进行判断，并将问题扩大为求任意多元函数的极值。
This paper USES the theory of quadratic form to distinguish this problem, not only that, it enlarge to calculate extreme value for function of many variable.
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