实测数据计算结果表明，选优后的误差修正模型可有效提高目标定位精度。

Computation results with flight experiment data indicate that the error correction models effectively increase rocket positioning accuracy after optimization.

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并运用EG两步法建立二者之间的误差修正模型，得出了进口对经济增长的短期和长期作用。

The Error Correction Model between them is built by EG two-step method with the correlative long-term effect and short-term effect on import.

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在此基础上建立了描述上海城市竞争力短期动态变化的误差修正模型，并进行了预测方差分解。

Subsequently it establishes error correction models to describe short-term dynamic change and carries on forecast variance decomposition.

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