Based on three major anomalous phenomena in 9 yr of research on nuclear reactions in solids, research-ers assume that a resonant tunneling model explains the experimental observation. Using a square-well configu-ration, the maximum resonant tunneling current through the Coulomb barrier is shown to be ofthe order ot 1/θ, while the nonresonant tunneling current is of, the order of 1/θ2 (1/θ2 is the Gamow tunneling factor). The dis-tinction between the resonant tunneling model and the compound nucleus modef is discussed. Particularly, the fon energy band fn the deuteride is fnvoked to generate the necessary fong Zifetime (d+d)x state. This resonant tunneling model might provide a mechanism for low-enerev nuclear transmutation as well.