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取样精密度
相关语句
  相似匹配句对
     the precision (c. v. )
     精密度(C.V.)
短句来源
     Passion for Precision
     精密度的追求
短句来源
     Multi-Sampling Effect
     多次取样效应
短句来源
     Sampling Device of Synthetic Resin
     合成树脂取样装置
短句来源
     Both accuracy and precision for the determination of 30-40 μg Pu are within 0.1%.
     钚的取样量为30—40μg时,准确度及精密度(RSD)均在0.1%以内。
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  sampling precision
The conditions favorable to the improvement of the sampling precision were found.
      
The number of plants required for reliable population estimates was inversely proportional to population density; this relationship was graphed for three levels of sampling precision (10%, 15%, and 20% standard error).
      
For the estimation of density, sampling precision (SE/mean) increased with higher tally thresholds (T); however, there was negligible improvement in precision with T≥3 adults per leaf.
      
General formulae are presented that allow calculation of upper and lower boundary constraints on levels of sampling precision.
      
Different sample set sizes, different sampling patterns, and two levels of sampling precision were used.
      
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(intention) trying to find out the timesaving and laborsaving method of phosphrite sampling by sampling representative phosphrite.(ways and means)making further research for phosphrite sampling method according to the data statistical theoretics of GB/T2007-1987The general rule of mineral bulk cargo sampling and sample making.(outcome) Stipulating for the statistics of different batches least samplessampling exact degreetotal exact degree (specimen as the table 4);We also made experiments of sampling exact degree...

(intention) trying to find out the timesaving and laborsaving method of phosphrite sampling by sampling representative phosphrite.(ways and means)making further research for phosphrite sampling method according to the data statistical theoretics of GB/T2007-1987The general rule of mineral bulk cargo sampling and sample making.(outcome) Stipulating for the statistics of different batches least samplessampling exact degreetotal exact degree (specimen as the table 4);We also made experiments of sampling exact degree checkage under three different conditions including system sampling ,lathe-bed sampling and freight stack sampling.All of them were completely reach the design requirement.(conclusion)according to the further research under different condition including the size of phosphorus orequantityquality . This research technique , which is basic on the method of national commendatory standard phosphorite sampling ,is more precise, more scientific ,less samples quantity ,more feasible on operation.This technique has been warranted as system non-standardization method by the GuangDong CIQ .serial number: GDFB197-2003.

〔目的〕找到所抽取样品具有代表性、达到一定精度要求的、省时省力的磷矿产品取样方法。〔方法〕根据GB/T2007-1987《散装矿产品取样、制样通则》的数理统计理论,对磷矿取样方法进行了进一步研究。〔结果〕制订出了不同检验批量应取最少份样数和取样精密度、总精密度统计表;同时对系统、车卡和货堆三种取样条件下的样品进行了精密度校核试验,完全达到设计要求。〔结论〕本研究方法理论严谨、依据科学、取样份样数少,可操作性强。

 
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