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(subclass RadioSystem CommunicationSystem) Communications.kif 231-231 子類 無線電系統 and 通訊系統
(subclass AMRadioSystem RadioSystem) Communications.kif 236-236 子類 AM無線電系統 and 無線電系統
(subclass FMRadioSystem RadioSystem) Communications.kif 241-241 子類 調頻廣播系統 and 無線電系統
(subclass ShortwaveRadioSystem RadioSystem) Communications.kif 246-246 子類 短波無線電系統 and 無線電系統
(subclass BabyMonitoringSystem RadioSystem) Communications.kif 251-251 子類 BabyMonitoringSystem and 無線電系統


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