petrochemical extinguishing system

• 石油灭火系统

petrochemical extinguishing system的用法和样例：

例句

1. Fire extinguishing systems remain on stand-by.
   灭火系统保持在待用状态。
2. But, the type-A fire should be extinguished by using the fixed type hydrant extinguishing fire system.
   甲类火则使用固定式消防栓灭火系统灭火。