本文通过大量的试验、调查分析，得到了组成铁路桥梁永久作用各分随机变量的统计特征值，并进一步分别得到了钢桥、混凝土桥桥上永久作用的概率分布。
In this paper the probability distribution curve of the dead Loads acting on railway Bridges is obtained through a great number of experiments, investigations and analyses.
本文通过大量的试验、调查分析，得到了组成铁路桥梁永久作用各分随机变量的统计特征值，并进一步分别得到了钢桥、混凝土桥桥上永久作用的概率分布。
In this paper the probability distribution curve of the dead Loads acting on railway Bridges is obtained through a great number of experiments, investigations and analyses.
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