low molar ratio of CaO to SiO2
low molar ratio UF resin
low molar ratio urea-formaldehyde resin
high-low-low temperature
high-low-low temperature process
LLWL (low-low water level)
Low molar-mass organic gelator
low ratio expansion sheet
Low Ratio of Height to Diameter
low ratio of polymer to cement
low ratio of steam to dry gas
Low-low satellite to satellite tracking mode
Low-Low Satellite-to-Satellite Tracking
low-low water level switch
low-molar-mass liquid crystal