limiting rigidity number

例句：

1. 1. The engineer used a limiting rigiditynumber to calculate the stress in the beam.
   工程师使用限制刚性数来计算梁中的应力。
2. 2.The material's limiting rigidity numberis critical for its strength and durability.
   材料的极限刚性数对其强度和耐用性至关重要。
3. 3.The design of the structure must consider thelimiting rigidity number to ensure its stability.
   结构的设计必须考虑极限刚性数，以确保其稳定性。