However, even though electricity doesn't supply me with breathable air, it at least operates the powerful pumps that store it under pressure in special tanks; which, if need be, allows me to extend my stay in the lower strata for as long as I want."
Si la electricidad no me provee del aire respirable, sí acciona, al menos, las poderosas bombas con que lo almacenamos en depósitos especiales, lo que me permite prolongar por el tiempo que desee, si es necesario, mi permanencia en las capas profundas.