The fluorescence quantum efficiency of oxazine 1perohlorate in1-dichloro-ethane was measured with photoacoustic speetroscopy in which the fluorescence quenching wag used.

利用光声光谱技术，采取猝灭的方法对（口恶）嗪1高氯酸盐的二氯乙烷溶液进行荧光量子效率的测量。

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The fluorescence of dominant species leaves is decreasing at noon shows that efficiency of light energy conversion at noon is decreasing and further to explain photo inhibition.

中午优势种叶片荧光降低表明中午的实际光能转化效率降低，进而说明了中午发生光合作用光抑制。

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Comparing with the chemical analysis, X-ray fluorescence analysis has feature of more efficiency and lower cost.

与化学分析相比，X荧光分析具有更加快捷、成本低廉的优点。

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