cab dash low air pressure light
engine test bed for simulating high-altitude(low air pressure)
low air pressure buzzer
low air pressure indicator
low air pressure warning buzzer
low pressure air conditioning system
low pressure air receiver
low-pressure air stower
low pressure compressed air
low startup air pressure
low-pressure low-permeability reservoir
High-pressure air pressure
200MW steam turbine low-pressure cylinder
660MW low pressure outer shell
a long low-pressure pulse bag filter
a low pressure aspirator