安全负压通风系统 Safety subatmospheric pressure ventilation system

全负压烟囱 Full negative-pressure stack

全负荷喷油压力 full load injection pressure

负压安全壳 negative pressure containment

安全壳负压保持系统 containment subatmospheric pressure system

泵负载安全阀压力 pump charge relief valve pressure

负压安全活门 negative pressure relief valve