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subtracting
    Analysis of CMRR of Two Basic Subtracting Circuits
    两种基本减法运算电路共模抑制比(CMRR)的分析
    The effects of non-NaFeEDTA unfortified iron in soy sauce samples and background color were eliminated by subtracting the resultant value obtained under neutral condition from the value obtained under acid condition. The rate of recovery was 98.5%~107.9%,with relative standard deviation(RSD)1.4%~5.1%.
    试样中的非强化的铁及颜色背景的干扰采用差减法校正扣除,试样加标回收率为98.5%~107.9%,相对标准偏差(RSD)为1.4%~5.1%。
    On "Subtracting" Design
    论“减法”设计
    Experiments showed that the gain-bandwidth of the subtracting operational amplifier is the key of hardware method.
    实验表明减法运算放大器增益带宽是硬件方法的关键。
    After analyzing third harmonic, it is showed that, in some range of definite frequency, the increase in the gain-bandwidth of the subtracting operational amplifier will effectively reduce the amplitude of third harmonic.
    对实验数据的三次谐波的分析表明,在一定频率范围内,提高减法运算放大器的增益带宽能有效减少三次谐波的幅度。
    The trace organic mercury was obtained by subtracting inorganic mercury from the total.
    并用差减法求出有机汞。
    This paper analyzes the differences of CMRR caused by the deviation of accuracy of resistance matching in two basic subtracting circuits. It expounds that the subtracting circuit consisting of single amp.
    本文分析两种基本减法电路,由于电阻元件配合准确度的偏差而引起的电路共模抑制比(CMRR)的差异。
    An improved method was utilized for constructing hybrid arrested λ phage cDNA library by subtractive hybridization, in which magnetic particles were applied to separate monomers from hybrids, and candidate sscDNAs were enriched by subtracting two control mRNAs from one treated sscDNA. The results showed that this new approach had a efficient improvement in constructing cDNA library which increased the yield of monomers, simplified experimental procedures and enriched more candidate genes. 
    介绍了一种改进的利用减法杂交构建λ噬菌体cDNA文库的方法,该方法利用处理的scDNA减去两种对照的mRNA富集目的sscDNA并用磁珠法分离杂交单体,结果表明其增加了杂交单体的产量、简化了实验步骤,而且更有利于富集所需基因,是构建cDNA文库的一个有效改进.
    The frame difference algorithm was used for dealing with the problem of initial background image extracting automatically,and different moving pixels in current image were detected through a subtracting technique.
    通过一种基于帧间差分的算法,自动提取初始背景图像,并使用相减法,检测出当前图像中的运动像素.
 

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