(subclass Blackboard DataDisplayDevice) | Media.kif 1085-1085 | Blackboard 是 DataDisplayDevice 的 subclass |
(subclass Blackboard DataStorageDevice) | Media.kif 1086-1086 | Blackboard 是 DataStorageDevice 的 subclass |
(subclass Blackboard DisplayArtifact) | Media.kif 1087-1087 | Blackboard 是 显示神器 的 subclass |