Terms containing symmetrical alternating quantity

Subject	English	French
earth.sc., el.	amplitude of a symmetrical alternating quantity	amplitude d'une grandeur alternative symétrique
phys.sc., el.	form factor of a symmetrical alternating quantity	facteur de forme d'une grandeur alternative symétrique
earth.sc., el.	symmetrical alternating quantity	grandeur alternative symétrique
math.	symmetrical alternating quantity	grandeur symétrique