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arithmetic average中文是什么意思

  • 算術(shù)平均數(shù)
  • 算術(shù)平均植
  • 算術(shù)平均值
  • 運(yùn)算平均

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  • 例句與用法
  • Many functions such as field information map , contrastive map of yearly yield , prescription map , etc . can be made . in order to improve using accuracy of agricultural gps , by analyzing the error of point , polyline , polygon , several methods are produced such as arithmetic average value , least squares , adding control points , etc . their principles , features and limitations are also analyzed and discussed . the mathematic model of average error method included in adding control points is established
    為了進(jìn)一步提高農(nóng)用gps的使用精度,研究了提高精度的方法,通過對(duì)點(diǎn)、線、面等誤差的分析,提出了應(yīng)用算術(shù)平均值法、最小二乘法、加入控制點(diǎn)法等多種提高精度的方法,分析和討論了它們的原理、特點(diǎn)與應(yīng)用局限性,并建立了加入控制點(diǎn)法中的誤差平差法的數(shù)學(xué)模型。
  • Sixties primers were used for dna amplification and a total of 237 amplification products range from 450bp to 2500bp were generated . a similarity matrix for all pairwise comparisons was calculated using nei and li ' s formula and then transformed to distance matrix . dendrograms were constructed by applying unweighted pair - group arithmetic average ( upgma ) and neighboring - jointing cluster analyses using the phylip software
    在第二部分,應(yīng)用改進(jìn)的ctab法提取了石莼屬和滸苔屬各3個(gè)種及作為對(duì)照的剛毛藻的基因組dna , 60個(gè)引物被用于擴(kuò)增,共獲得237個(gè)片段大小在450 - 2500bp之間的擴(kuò)增片段,依據(jù)nei和li ( 1979 )的公式計(jì)算出樣品成對(duì)比較的相似性距陣并換算成遺傳距離,應(yīng)用phylip軟件包,按照upgma法和n - j法分別構(gòu)建聚類圖。
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