limit of crack opening

例句：

1. 1. The engineer determined the material's limit of crack opening to ensure safety.
   工程师确定了材料的裂缝开口极限以确保安全。
2. 2.The construction firm must comply with the environmental regulations to avoid exceeding the limit of crack opening.
   建筑公司必须遵守环境法规，以避免超过裂缝开口极限。
3. 3. The structural integrity of the bridge was compromised due to excessive traffic and the limit of crackopening.
   由于交通量过大和裂缝开口极限的超出，桥梁的结构完整性受到了损害。