(subclass Resonance NaturalProcess) | engineering.kif 651-651 | 谐振 是 自然过程 的 subclass |
(subclass MechanicalResonance Resonance) | engineering.kif 654-654 | 机械共振 是 谐振 的 subclass |
(subclass ElectricalResonance Resonance) | engineering.kif 658-658 | 电共振 是 谐振 的 subclass |