(subclass DCPowerSource PowerSource) | Mid-level-ontology.kif 2575-2575 | 直流电源 是 能量源 的 subclass |
(subclass Battery DCPowerSource) | Mid-level-ontology.kif 2577-2577 | 电池 是 直流电源 的 subclass |
(subclass DevicePowerSupply DCPowerSource) | ComputingBrands.kif 3560-3560 | DevicePowerSupply 是 直流电源 的 subclass |