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Term 1: Term 2:

(subclass Fourpole Multipole) engineering.kif 587-587 子類 fourpole and 多極
(subclass Twoport Fourpole) engineering.kif 590-590 子類 雙端口 and fourpole
(subclass IdealOperationalAmplifier Fourpole) engineering.kif 604-604 子類 理想運算放大器 and fourpole


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