In most cases, the rational value of a commodity is best approximated by the average value that consumers assign it.
大多情况下，消费者为一项商品指定价格的平均值最接近这项商品的合理价值。
The GGE data is then subjected to singular value decomposition and is approximated by the first two principal components.
对GGE 作单值分解，并以第一和第二主成分近似之。
In order to get low sidelobe pattern, the power distribution among dipoles must be approximated to the theoretical value and the array must well match with a feed network.
由分析公式和计算结果可以看出，为了获得低副瓣方向图，必须严格控制功分器网络的精度及使天线阵与馈线有良好匹配。
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