metallic shield

例句：

1. 1. The engineer designeda metallic shield to protect the workers fromfalling debris.
   工程师设计了一个金属防护罩来保护工人免受坠落物的伤害。
2. 2. Themilitary used metal shields to defend againstenemy attacks.
   军队使用金属防护罩来抵御敌人的攻击。
3. 3. The construction site was surroundedby a steel plate to ensure safety duringthe construction process.
   施工现场周围安装了钢板以确保施工过程中的安全。