indented beam

例句：

1. 1. The engineer carefully measured the dimensions of the indented beam before construction.
   工程师在建造前仔细测量了凹入梁的尺寸。
2. 2. The beam was reinforced with steel to prevent it from indenting under load.
   该梁被加固以承受载荷，防止凹陷。
3. 3.The beam's design incorporates a unique indentation pattern for enhanced stability and durability.
   该梁的设计包含了独特的凹槽模式，以提高稳定性和耐用性。