Wavelet analysis reveals that the temporal scale of this change is larger than 20 years.
子波分析的结果证实这次转变的时间尺度在20年以上。
The longterm preserved specimens and fossil insects, when used for stable isotope analysis, can expand the temporal scale of these studies greatly.
对长期保存标本与昆虫化石的同位素分析则扩展了研究的时间范围。
The studies of soil erosion assessment on regional scale is reduced to three categories depending on temporal scales.
对目前区域尺度上土壤侵蚀评价的主要研究内容进行了归纳。
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