| (subclass PhysicalSystem Physical) | Merge.kif 6121-6121 | 子類 物理系統 and Physical |
| (subclass TransitSystem PhysicalSystem) | Transportation.kif 2821-2821 | 子類 運輸系統 and 物理系統 |
| (subclass AutoSuspensionSystem PhysicalSystem) | Cars.kif 717-717 | 子類 AutoSuspensionSystem and 物理系統 |
| (subclass Automobile PhysicalSystem) | Cars.kif 836-836 | 子類 汽車 and 物理系統 |
| (subclass BrakeSystem PhysicalSystem) | Cars.kif 1230-1230 | 子類 BrakeSystem and 物理系統 |
| (subclass HydraulicCylinder PhysicalSystem) | Cars.kif 1598-1598 | 子類 HydraulicCylinder and 物理系統 |
| (subclass EngineCoolingSystem PhysicalSystem) | Cars.kif 2135-2135 | 子類 EngineCoolingSystem and 物理系統 |
| (subclass AutomobileExhaustSystem PhysicalSystem) | Cars.kif 2605-2605 | 子類 AutomobileExhaustSystem and 物理系統 |
| (subclass AutomobileIgnitionSystem PhysicalSystem) | Cars.kif 3195-3195 | 子類 AutomobileIgnitionSystem and 物理系統 |
|
|