In another example, the exterior boundary of Saturn's A ring is in a 7: 6 resonance with the satellites Janus and Epimetheus.
In another example, the exterior boundary of Saturn's A ring is in a 7: 6 resonance with the satellites Janus and Epimetheus.
又如，土星A环外围粒子与土卫十及土卫十一成7：6共振。