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单词 pyranthrene
释义 pyr·an·threne
\pə̇ˈranˌthrēn, pīˈr-\ noun
(-s)
Etymology: International Scientific Vocabulary pyr- + -anthrene
: a green-yellow crystalline aromatic hydrocarbon consisting of eight compactly but unsymmetrically fused benzene rings in three tiers
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