本文利用实验室实测的土壤反射光谱以及铅、镉、汞等重金属元素数据，进行土壤重金属元素含量快速预测的可行性研究。
This paper analyzed the possibility of reflectance spectra obtained under laboratory conditions for the assessment of Pb, Cd and Hg content in soil quickly.
最后根据实测在不同反射率下外腔激光器的激射光谱，发现理论分析结果和实验数据是吻合的。
The output spectrum of FBG-ECL in different peak reflectivity was practically measured. The result of experiment is accordant with theoretical analysis' conclusion.
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