shielding factor of bridge and tunnel

例句：

1. 1.The design of the bridge and tunnel is crucial for its safety and durability.
   桥梁和隧道的设计对于其安全和耐用性至关重要。
2. 2.The shielding factor of the bridge and tunnel plays a vital role in protecting against natural disasters.
   桥梁和隧道的防护系数在抵御自然灾害方面发挥着重要作用。
3. 3.The construction of the bridge and tunnel required careful consideration of the shielding factor to ensure structural integrity.
   桥梁和隧道的建设需要仔细考虑防护系数，以确保结构完整性。