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PASC abbr.
abbr.	Pan American Standards Committee; Portable Application Standards Committee (organization, IEEE)
abbr., earth.sc.	polyaluminum silicate chloride
abbr., el.	precision adaptive subband coding; precision adaptive subsidiary coding
abbr., electr.eng.	Proportional Ambient Sensing Control (heat-tracing freeze protection systems makhno)
abbr., med.	post-acute sequelae condition (постковидный синдром CRINKUM-CRANKUM)
abbr., oil	Pacific Area Standards Congress; Pan-American Standards Committee; pressure activated stage collar
abbr., space	partial aperture solar calibration