Somebody explain why the operator amp slot and the weapon slots

NEMA Straight Blade Reference Chart ; NEMA 5-15 Diagram NEMA 5-15, 125V AC, 15 amps, 3 Wires, 2 Poles ; NEMA 5-20 Diagram T-Slot NEMA 5-20 T-Slot, 125V AC, 20

amp itself Isolation amplifiers : dual Iso-amp-out module Here the output voltages from the measure modules enter Via

ampm slot Ethernet-based networking enables configuration, control and monitoring, and an expansion slot supports input from optional digital audio accessory cards The

ampera slot 60 Amp £ & £ Slot Meter · Rated 60 Amps with £ or £ coin slot · Adjustable tariff, to allow for future electricity price increases