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单词
photosynthetically active radiation
释义
photosynthetically active radiation
Encyclopedia
农学
植物分子生物学
释
photosynthetically active radiation; PAR
光合有效辐射
波长在400~700纳米左右,能为绿色植物吸收用来进行光合作用中光化学反应,使叶绿素分子呈激发状态的那部分太阳能辐射。是植物生命活动、有机物质合成和产量形成的能量来源。通常简称为PAR。
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