After adequate approximation and simplification, the formula obtained is checked by the actual data and the computational results are in agreement with the empirical values.
在作了适当近似和简化后，本文以实际数字对所求得的公式作了检验，计算结果和经验值吻合较好。
The two methods of model simplification are presented for large scale systems, they are the least square approximation and the rational fraction approximation.
本文针对大系统的频域模型简化提出了两种方法：最小二乘近似法和有理分式近似法。
The two methods of model simplification are presented for large scale systems, they are the least square approximation and the rational fraction approximation.
本文针对大系统的频域模型简化提出了两种方法：最小二乘近似法和有理分式近似法。
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