prepacked aggregate

例句：

1. 1.The prepacked aggregates are easy to transport and store.
   预包装材料便于运输和储存。
2. 2. The engineer used the prepacked aggregates to reinforce the foundation.
   工程师使用预包装材料加固地基。
3. 3. The construction company used prepacked aggregates to build the new bridge.
   建筑公司使用预包装材料建造了新桥。