As the minimum feedback vertex set problem is NP-complete, it is hard to be solved exactly.

最小反馈节点集问题是一个NP完全问题，很难准确求解。

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The problem of bars in pure tension and pure bending will be solved exactly by analytical method.

用解析法精确地求解了杆的纯拉伸和纯弯曲问题。

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A (1+1)-dimensional lattice U(1) gauge model is solved exactly and the result shows that this model has correct continuum limit.

本文准确求解了一个1+1维格点U（1）规范模型。 结果显示格点规范模型具有正确的连续极限。

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With that issue solved, the question then turns to what these private vehicles are exactly?

FORBES: Nonsense futures of the automobile straightened out by some basic consumer cost-benefit thinking

If nothing else, the bus strike has solved the question, so puzzling for many in Beverly Hills, of how exactly Juanita and Maria come to work.

ECONOMIST: The LA transport strike