“photosynthetically active radiation meter”的概念、定义、翻译、参考文献-科学参考

单词	photosynthetically active radiation meter
释义	photosynthetically active radiation meter Encyclopedia 工学光合有效辐射表释 photosynthetically active radiation meter光合有效辐射表用于测量光谱从400～700纳米范围内水平面太阳辐射的仪器。
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