(subclass EngineCoolingSystem PhysicalSystem) | Cars.kif 2135-2135 | EngineCoolingSystem 是 物理系统 的 subclass |
(subclass LiquidEngineCoolingSystem EngineCoolingSystem) | Cars.kif 2156-2156 | LiquidEngineCoolingSystem 是 EngineCoolingSystem 的 subclass |
(subclass AirEngineCoolingSystem EngineCoolingSystem) | Cars.kif 2176-2176 | AirEngineCoolingSystem 是 EngineCoolingSystem 的 subclass |