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Term 1: Term 2:

(subclass Spring Device) engineering.kif 776-776 子類 彈簧 and Device
(subclass WireSpring Spring) Cars.kif 723-723 子類 鋼絲彈簧 and 彈簧
(subclass LeafSpring Spring) Cars.kif 887-887 子類 LeafSpring and 彈簧


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