试验表明：用此方法选出来的非线性预报因子和建立的方程比线性的好。

The experiments show both the nonlinear predictors and corresponding equation based on this method are better than those linear equations.

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因此研究有关船舶运动的非线性预报与减摇控制方法具有非常重要的意义。

So it is important to study ship movement nonlinear prediction and anti-roll control method.

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本文根据最优化方法原理，提出了选择非线性最优预报因子和建立非线性预报方程的办法。

In this paper, a method to select some nonlinear predictors and to build a nonlinear forecasting equation was proposed based on optimization principles.

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