A “fifteen-pound” CO2 extinguisher is so called because().

A . there are fifteen pounds of CO in the container B . the container,when full,weighs fifteen pounds C . the pressure at the discharge nozzle is l5 psi D . the empty container weighs fifteen pound

时间:2022-09-25 04:22:44 所属题库:船舶结构与布置题库

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