(subclass EngineCoolingSystem PhysicalSystem) | Cars.kif 2141-2141 | EngineCoolingSystem 是 物理系统 的 subclass |
(subclass LiquidEngineCoolingSystem EngineCoolingSystem) | Cars.kif 2162-2162 | LiquidEngineCoolingSystem 是 EngineCoolingSystem 的 subclass |
(subclass AirEngineCoolingSystem EngineCoolingSystem) | Cars.kif 2182-2182 | AirEngineCoolingSystem 是 EngineCoolingSystem 的 subclass |