灭火器压力降低到不可使用状态，的翻译：Fire extinguishers pressure is reduced to non-use, 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

The fire extinguisher pressure is reduced to the status can not be used

Fire extinguishers pressure is reduced to non-use,

Fire extinguisher pressure drop to may not the running condition,

Portable fire extinguishers must not be used to reduce pressure status.

Fire extinguishers pressure is reduced to non-use,