No TPTP formula. May not be expressible in strict first order. | Cars.kif 582-582 | WearingFrictionSurface 是 设备 的 subclass |
No TPTP formula. May not be expressible in strict first order. | Cars.kif 596-596 | BrakeShoe 是 WearingFrictionSurface 的 subclass |
No TPTP formula. May not be expressible in strict first order. | Cars.kif 658-658 | BrakePad 是 WearingFrictionSurface 的 subclass |