Terms for subject Earth sciences containing unipolar

Spanish	English
arco unipolar	unipolar arc
fusible unipolar	single-pole fuse
interruptor unipolar	single-throw switch
interruptor unipolar	single-pole switch
unipolar de 2 direcciones	single-pole double-throw
unipolar de 1 dirección	single-pole single-throw
unipolar de dos direcciones	single-pole double-throw
unipolar de una dirección	single-pole single-throw