progressive differentiation

a.f.s (american foundryman's society) androgenic haploid beggiatoa mirabilis fiscal science gravity reference station high-head axial-flow water-turbine pump interhaplogroup kodagu (coorg) Lys-C net long-term debt party game production-orientateds radial rib sulphur telesounder topographic youth training programmes tufted titmice unattended terminal underwater mooring device