以下为句子列表:
英文: Calibrating the gravity model consists of evaluating the parameters of the impedance function (or the values in the friction factor table) so that the gravity model reproduces, as closely as possible, the base year productions and/or attractions and the b
中文: 校准重力模型就是计算阻抗函数参数(或者摩阻系数表中的值),使其尽可能吻合基年产生和吸引,以及基年的出行距离分布。
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