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介绍了斜拉桁架体系的发展及受力特征，并以三种结构形式的实桥作了简要介绍，最后将其经济指标与其它几种桥型作了比较。
The development and force characteristics of the diagonal truss system are introduced. The three kinds of structural bridges are briefly introduced. Finally, the economic indicators are compared with several other bridge types.