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data frequencies
相关语句
  数据频率
     And when the absolute value of the relative deviation is larger than 100% the data frequencies are 16.7%, 6.7% and 10.0% respectively.
     相对偏差的绝对值≥100%的数据频率分别为16.7%,6.7%和10.0%.
短句来源
     The results indicate that the predicted values of these three models are not accurate enough for Daqing oil. When the absolute value of the relative deviation between calculated values and measured data is less than 10%, the data frequencies are 20%,30% and 43% for Standing's, Lasater's and Vasquez-Beggs' models respectively.
     结果表明,这三个模型对大庆原油预测的符合率较低,计算值与实测值相对偏差的绝对值≤10%的数据频率分别为20.0%,30.0%和43.3%;
短句来源
  “data frequencies”译为未确定词的双语例句
     A high-speed acquisition and analysis system based on USB was introduced in this paper. It utilized one piece of 8254 and two pieces of MAX1090s to acquire the following data: frequencies from three channels and analog signals from sixteen channels,then transmitted them to PC via FT245BM.
     介绍了一种基于USB通信方式的高速采集分析系统,利用一片8254和两片MAX 1090去采集3路频率量和16路模拟量,然后把采集的数据通过FT245BM发送给PC机。
短句来源
  相似匹配句对
     ON FREQUENCIES
     频率辨
短句来源
     DATA
     数据
短句来源
     The data were assessed by the frequencies, T-test by groups.
     数据分析采用频数分布、分组t检验。
短句来源
     data sections.
     data块的DES加密过程.
短句来源
     The data of the hyperplasic group were less at all frequencies (P<0.01).
     而增生性前膜组全空间频率对比度均显著性下降(P<0.01)。
短句来源
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  data frequencies
This paper compares the performance of alternative models of east Asian exchange rates at different data frequencies.
      
An Assessment of Empirical Model Performance When Financial Market Transactions are Observed at Different Data Frequencies: An A
      
The substitution model, however, is adjusted so that the equilibrium frequencies are the data frequencies.
      
The cable specification was confirmed as being nominally 110 ohms at data frequencies.
      
This area of feature space represents high data frequencies within the scenes concerned.
      


Predicting models for gas-oil ratio of reservoir oil, which were put forward by Standing, Lasater, and Vasquez-Beggs respectively, have been verified by the PVT parameters of oil from 30 exploration wells in Daqing Oilfield. The results indicate that the predicted values of these three models are not accurate enough for Daqing oil. When the absolute value of the relative deviation between calculated values and measured data is less than 10%, the data frequencies are 20%,30% and 43% for Standing's, Lasater's...

Predicting models for gas-oil ratio of reservoir oil, which were put forward by Standing, Lasater, and Vasquez-Beggs respectively, have been verified by the PVT parameters of oil from 30 exploration wells in Daqing Oilfield. The results indicate that the predicted values of these three models are not accurate enough for Daqing oil. When the absolute value of the relative deviation between calculated values and measured data is less than 10%, the data frequencies are 20%,30% and 43% for Standing's, Lasater's and Vasquez-Beggs' models respectively. And when the absolute value of the relative deviation is larger than 100% the data frequencies are 16.7%, 6.7% and 10.0% respectively. Vasquez-Beggs model is more accurate than the other two. But because two constant coefficients have been used it results in the discontinuity of relation curve of R_s vs. API gravity of oil, therefore, the calculated values of the model reveal unreasonable results. Based on the analysis of the cause of deviation, we find that there is great difference between marine and continental crude oil. We may conclude that it is not reasonable to use only a relative density to express properties of gas.

根据大庆油田30口探井的原油物性实测资料检验了Standing,Lasater和Vasquez-Beggs等提出的预测地层原油的气油体积比的模型精度.结果表明,这三个模型对大庆原油预测的符合率较低,计算值与实测值相对偏差的绝对值≤10%的数据频率分别为20.0%,30.0%和43.3%;相对偏差的绝对值≥100%的数据频率分别为16.7%,6.7%和10.0%.相对比较,Vasquez-Beggs模型的准确度较高,但由于该模型对于不同重度的原油采用了2套常系数,导致了气油体积比与重度的关系曲线上出现断点,即出现了模型计算值不合理的现象.分析了产生偏差的原因,认为海、陆相原油性质差别大;模型中仅用相对密度来表征气体性质不甚合理.

A high-speed acquisition and analysis system based on USB was introduced in this paper.It utilized one piece of 8254 and two pieces of MAX1090s to acquire the following data: frequencies from three channels and analog signals from sixteen channels,then transmitted them to PC via FT245BM.Finally,according to three different ways of time,distance and outer trigger,PC utilized various parameters that have been set in advance,to process these data in visual way,and stored the result into database.The...

A high-speed acquisition and analysis system based on USB was introduced in this paper.It utilized one piece of 8254 and two pieces of MAX1090s to acquire the following data: frequencies from three channels and analog signals from sixteen channels,then transmitted them to PC via FT245BM.Finally,according to three different ways of time,distance and outer trigger,PC utilized various parameters that have been set in advance,to process these data in visual way,and stored the result into database.The three modules of data acquisition,communication and analysis can work under parallel order.

介绍了一种基于USB通信方式的高速采集分析系统,利用一片8254和两片MAX 1090去采集3路频率量和16路模拟量,然后把采集的数据通过FT245BM发送给PC机。PC机再根据按时、定距以及外触发三种不同的方式,利用预先设置好的各种参数,进行可视化的数据分析处理,并存储于数据库。数据采集、通信和分析三个模块采用并行工作方式。

 
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