Pretel PRE Pre-School Assistance Support Scheme PASS pre-roasted material of Strontium Ferrite Precipitatation-hardening stainless steel Pre-Positioned Equipment Requirements List pre-action auto-fire-sprinkling system preformed gradient isodensity centrifugation pre-quasi-coincident neighborhood system prefabricated concrete simply supported beam precast monolithic reinforced concrete frame preassigned multiple access satellite system