automatic low vacuum regulator
cab dash low air pressure light
engine test bed for simulating high-altitude(low air pressure)
evaluation of low air temperature
Heat Supplying with Low Vacuum
high-low-low temperature
high-low-low temperature process
LLWL (low-low water level)
Low Air Permeability Coal Seam
low air permeable coal seams
low air pressure buzzer
low air pressure indicator
low air pressure warning buzzer
low air temperature in winter
low air-entry (ceramic) disk
low air-entry ceramic disc