composite girder的用法和樣例：
例句
- And it can be used for designing composite I-beam and I-typed crane beam.
這對工程上組合梁及吊車梁的設計具有實際意義。 - Nonlinear analysis method on the mechanical behavior of preflex composite beams was established with the nonlinear stress-strain curves of materials.
摘要採用材料非線性本構關係研究預彎組合梁的受力行為，建立預彎組合梁從預彎鋼樑加荷到結構破壞的非線性全過程分析方法。
