(subclass ComputerPort EngineeringComponent) | ComputingBrands.kif 2554-2554 | 子類 端口 and EngineeringComponent |
(subclass USBPort ComputerPort) | ComputingBrands.kif 2870-2870 | 子類 USBPort and 端口 |
(subclass AppleDockPort ComputerPort) | ComputingBrands.kif 2881-2881 | 子類 插槽 and 端口 |