arc zero current area

arc zero-current area

backset current area

current file

current file user

current-current converter

Wide Area Current Differential Protection

Wide-area current differential protection

database area file

file area

multi-area file

separate file area

keyed file file access system

area, area side trapezoid

area-area

area-area contact

wetted surface area [= area of wetted surface]

alternating current AC-direct current DC-AC

alternating current to direct current