When designing a numerical method for these problems, we have to consider three important features: algebraic order, periodicity stability and phase-lag, especially the phase-lag property.

在设计解此类问题的数值方法时，我们不得不考虑方法的这样三个特征：代数阶，周期稳定性以及相延迟性质，特别是相延迟性质。

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An attractive property of trust region methods lies in their numerical stability and robustness.

信赖域算法的一个显著优点是其稳定的数值性能。

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