文章研究了用电荷-耦合装置电感耦合等离子体发射光谱同时测定土壤中多种元素，并对校正基体干扰效应的方法进行了研究和比较。
The simultaneous determination of multi-element in soil by ICP-AES with a CCD and the method for correction of matrix interference effect are studied and compared.
研究了系列不同掺杂、不同掺杂浓度、单掺杂和双掺杂以及不同后处理态（生长态、还原态和氧化态）铌酸锂晶体的透过率光谱和光折变二波耦合效应。
The experimental results show that the optical transmission spectra range and two-wave mixing gains are smaller in the high doped LiNbO_3 crystals.
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