concrete beams

• 混凝土梁

concrete beams的用法和样例：

例句

1. The analytical results for strength and behavior of unbonded prestressed concrete beams were presented.
   给出了无粘结预应力混凝土梁强度和受力性能的分析结果。
2. They would certainly be less pleasing to the eye and often more expensive than the prestressed concrete beam.
   与预应力混凝土梁比较，它们自然更显得外貌粗拙，不甚美观，而且成本也往往更高一些。