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庚烯
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庚烯
含有七个碳原子、双键在开链分子链端部的单烯烃。又称正庚烯、正戊基乙烯。化学式为CH3(CH2)4CH═CH2。
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Uluguri
Ulungur Hu Endemic Fish National Aquatic Germplasm Resources Reserve
Uluru-Kata Tjuta National Park
Uluru–Kata Tjuta National Park
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Ulva
Ulyanovskaya oblast
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Ulysses probe
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Ulūgh Beg (1394—1449)
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umami
Umar II's reform of taxation system
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