青云翻译

The fire extinguisher pressure is reduced to the status can not be used to seal loss (Yang Jing unit);

Fire extinguishers pressure is reduced to non-use, seal is missing (Yang j unit);

Fire extinguisher pressure drop to cannot the running condition, the lead sealing lose (Yang peace unit);

Portable fire extinguishers must not be used to reduce pressure, lead-free package loss (Yang Jing units);

Fire extinguishers pressure is reduced to non-use, seal is missing (Yang j unit);