With abroad data and rational analysis, the major work is described as follows: (1) Influencing factors of reversed arch in prestressed concrete beam is analyzed at length.
本文通过广泛的资料收集和合理的理论分析与计算，主要进行了以下几项工作：(1)较细致地分析了影响预应力混凝土桥梁起拱度的各项因素。
With abroad data and rational analysis, the major work is described as follows: (1) Influencing factors of reversed arch in prestressed concrete beam is analyzed at length.
本文通过广泛的资料收集和合理的理论分析与计算，主要进行了以下几项工作：(1)较细致地分析了影响预应力混凝土桥梁起拱度的各项因素。
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