并以简化的荷载效应组合概率模型，计算出多台吊车组合时的荷载折减系数。
The load reduction factors of the multiple cranes are estimated with simplified probabilistic model of the load effect combination.
并以简化的荷载效应组合概率模型，计算出多台吊车组合时的荷载折减系数。
The load reduction factors of the multiple cranes are estimated with simplified probabilistic model of the load effect combination.
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