bulk shield

例句：

1. 1. The engineer designed a bulk shield to protect the workers from falling debris.
   工程师设计了一个大块屏障，以保护工人免受坠落碎片的伤害。
2. 2.The construction company used a bulk shield to shield workers from the harsh weather conditions.
   建筑公司使用大块屏障来保护工人免受恶劣天气条件的影响。
3. 3. The military developed a bulk shield to protect soldiers from enemy fire.
   军方开发了一种大块屏障，以保护士兵免受敌方火力的攻击。