low carbon dioxide emissions

low carbon emissions

low NO_x emissions

low NOx emissions

high-low-low temperature

high-low-low temperature process

LLWL (low-low water level)

Low-low satellite to satellite tracking mode

Low-Low Satellite-to-Satellite Tracking

low-low water level switch

mean low low water

Medium-Low-Low Temperature

mid low low temperature shift

mid low low temperature shift process

middle low low temperature” shift process

middle-low-low shift process

middle-low-low temperature shift

mid-low-low temperature shift process

pressurized medium-low-low shift process