| (subclass ElectricalComponent ElectricDevice) | engineering.kif 980-980 | 子類 電氣元件 and 電器 |
| (subclass Relay ElectricalComponent) | engineering.kif 748-748 | 子類 中繼 and 電氣元件 |
| (subclass Terminal ElectricalComponent) | engineering.kif 821-821 | 子類 終奌站 and 電氣元件 |
| (subclass ElectricalConductor ElectricalComponent) | engineering.kif 825-825 | 子類 ElectricalConductor and 電氣元件 |
| (subclass ResistorElement ElectricalComponent) | engineering.kif 854-854 | 子類 電阻元件 and 電氣元件 |
| (subclass Capacitor ElectricalComponent) | engineering.kif 864-864 | 子類 電容器 and 電氣元件 |
| (subclass Inductor ElectricalComponent) | engineering.kif 868-868 | 子類 感應器 and 電氣元件 |
| (subclass SemiconductorComponent ElectricalComponent) | engineering.kif 1039-1039 | 子類 半導體元件 and 電氣元件 |
| (subclass SparkPlug ElectricalComponent) | Cars.kif 434-434 | 子類 SparkPlug and 電氣元件 |
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