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   方频率 的翻译结果: 查询用时:0.558秒
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方频率
相关语句
  square frequency
    The restraining efficiency of the alterating speed grinding over grinding chatter at high speed is also given in the paper by means of variance analysis and mean--square frequency analysis in the light of alterating speed grinding, such as alterations of wheel speed, work speed, and both wheel and work speed.
    通过砂轮变速、工件变速、砂轮与工件同时变速等不同的磨削方式,借助方差分析和均方频率分析,揭示了变速磨削对于高速磨削颤振的抑制效果。
短句来源
  “方频率”译为未确定词的双语例句
    The feature value of frequency domain is MSF;
    频域特征值为均方频率(MSF);
短句来源
    Otherwise, the frequencyof occurrence and the distribution parameters are used to estimate the population densities of the weed and establish the models of optimization sampling and sequential sampling in this paper.
    利用有草作方频率和空间格局特征参数,对烟田杂草香附子种群密度进行估测,并建立相应的理论抽样数模型和序贯抽样模型。
短句来源
    In this artificial neural network model,the input nodes were average frequency,mean-square frequency,breadth of frequency,average swing,mean-square swing,breadth of swing.
    输入层为语音的平均频率、均方频率、频率宽度、平均振幅、均方振幅、振幅宽度 ; 输出层为识别输入者 ;
短句来源
    From the vibration signals of reference and fault stations the 11 kinds of characteristic of time domain and one characteristic of frequent domain was extracted and PCA was calculated.
    分别提取这些信号的时域和频域特征值进行主分量分析。 其中从振动时域信号提取最大峰值、绝对均值、有效值、均方值等11个特征值,并对信号功率谱进行分段处理,提取均方频率为特征值。
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  square frequency
An expression for the mean-square frequency of a short intense laser pulse passing through an ionizable gas is derived for arbitrary 3D irradiation and observation geometries and pulse intensity.
      


According to the investigative information of the weed Cyperus rotundus L, itsspatial distribution pattern in the tobacco fields is tested. The results are as follows:The distribution pattern of the weed is aggregative obviously. Otherwise, the frequencyof occurrence and the distribution parameters are used to estimate the population densities of the weed and establish the models of optimization sampling and sequential sampling in this paper. Based on the reality distribution map of the weed in the tobaccofields,...

According to the investigative information of the weed Cyperus rotundus L, itsspatial distribution pattern in the tobacco fields is tested. The results are as follows:The distribution pattern of the weed is aggregative obviously. Otherwise, the frequencyof occurrence and the distribution parameters are used to estimate the population densities of the weed and establish the models of optimization sampling and sequential sampling in this paper. Based on the reality distribution map of the weed in the tobaccofields, the four sampling methods are compared. The sampling method of the separateranges is the best.

本研究对杂草香附子(CyperusrotundusL.)在烟田的分布调查资料进行空间格局测定,结果表明:杂草香附子在烟田呈明显的聚集分布格局。利用有草作方频率和空间格局特征参数,对烟田杂草香附子种群密度进行估测,并建立相应的理论抽样数模型和序贯抽样模型。利用田间杂草实地分布图进行抽样比较,得出采用分行式抽样方法最佳。

 
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