音标：['pairi:n] ；

n. 分核, 小坚果
[化] 芘

n. a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar
n. the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it

词型变化：名词复数形式 : pyrenes

pyrene的用法和样例：

例句

用作名词(n.)

A series of new pyrene derivatives have been synthesized, and the photophysical properties have been studied by UV-absorption spectra and steady-state fluorescence spectra.本文合成了一系列新的芘衍生物，用紫外光谱和稳态荧光光谱方法研究了它们的光物理性质。

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