It was exact method that technique of leaf analysis was ascertained nitrogenconcentration and nitrogen forms.
6．叶分析技术是确定合理的氮素形态、氮素浓度最准确方法之一。
参考来源 - 氮素形态及氮素配比对越橘生长发育影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
傅里叶分析是将声音分解为正弦波的数学方法。
Fourier analysis is the mathematical method used to break sounds down into sine waves.
红外光谱可作为一种信号的功率谱，用富里叶分析来研究。
The fractal characteristics for the Infrared Spectra have been studied by the Fourier analysis and fractal method.
本文评述了葡萄叶分析营养诊断技术及其在葡萄施肥中的具体应用。
Leaf analysis technique and its application in grape fertilization were summarized in this paper.
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