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Term 1: Term 2:

(subclass ACPowerSource PowerSource) Mid-level-ontology.kif 26355-26355 ACPowerSource 是 能量源 的 subclass
(subclass SinglePhasePowerSource ACPowerSource) Mid-level-ontology.kif 26360-26360 单相电源 是 ACPowerSource 的 subclass
(subclass ThreePhasePowerSource ACPowerSource) Mid-level-ontology.kif 26361-26361 三相电源 是 ACPowerSource 的 subclass


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