concrete jacket

例句：

1. 1. The constructionworkers were wearing steel-reinforced concrete jackets to protect themselves from the cold weather.
   建筑工人穿着钢筋混凝土外套来保护自己免受寒冷天气的影响。
2. 2.The new bridge is made of steel-reinforced concrete, which is strong and durable.
   这座新桥是用钢筋混凝土建造的，既坚固又耐用。
3. 3.The engineer used a steel-reinforced concrete jacket to strengthen the foundation of the building.
   工程师使用钢筋混凝土外套加固了建筑物的基础。