primary relief tank

例句：

1. 1.The primary relief tank was used to transport supplies during the disaster.
   在灾难期间，初级救援油罐被用来运输物资。
2. 2.The crew members were trained in operating the primary relief tank.
   船员们接受了操作初级救援油罐的培训。
3. 3. The primary relief tank was essential for providing life-saving aid during the crisis.
   在危机中，初级救援油罐对于提供救命援助至关重要。