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Term 1: Term 2:

(subclass RefinedPetroleumProduct PetroleumProduct) Economy.kif 5929-5929 子類 精煉石油產品 and 石油產品
(subclass LiquefiedPetroleumGas RefinedPetroleumProduct) Economy.kif 5933-5933 子類 液化石油氣 and 精煉石油產品
(subclass PetroleumLubricant RefinedPetroleumProduct) Economy.kif 5935-5935 子類 石油潤滑劑 and 精煉石油產品
(subclass Asphalt RefinedPetroleumProduct) Economy.kif 5953-5953 子類 瀝青 and 精煉石油產品


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