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有效运算
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  “有效运算”译为未确定词的双语例句
     Two kinds of routine mixed programming modes,(VC++) and Matlab,are discussed in this paper,and the corresponding realizing steps and the disadvantages are presented. Based on experiment results,two other new mixed programming methods which combine the Matlab library and compiler with(VC++)are proposed.
     主要讨论了VC++与M atlab混合编程的两种常规方式,给出了利用M atlab数学函数库混合编程的实现方法,指出了常规方式存在不足的同时,提出了另外两种方法,实现了利用M atlab数学函数库和编译器结合VC++混合编程的新方法,充分发挥了VC++有效运算速率与M atlab强大矩阵运算的优点。
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     In this paper, based on the unitedtheory of AC motor vector controlled system, a mathematical model on the flux senser and speedcalculating is introduced and the differential element in the model is simplified to realized easily,the model's variables are both detected and controlled rotor voltage and current with rotating-dif-
     文中基于交流电机统一理论,以自控式双馈电机矢量控制系统为例,介绍了双馈电机磁通观测和速度计算的数学模型,并从便于实现的角度出发,对模型中的微分项进行了简化处理,使模型中的变量均为可测可控的转子电压和电流,其频率为转差频率,有效运算符号都为加减法,从而在体系上初步形成一个无速度传感器的双馈系统模式。
短句来源
     The experiments show that this method is simple and efficient. It operates fast and establishes the solid foundation to the feature extraction and fingerprint identification.
     实验结果表明,该算法简单有效,运算速度快,为指纹的特征提取和识别奠定了坚实的基础。
短句来源
  相似匹配句对
     It is evidenced this algorithm is effectual in operation actually.
     实际运算证明 ,该算法是有效
短句来源
     The results of real cases showed the effectiveness of the method.
     实际运算结果表明 ,该方法是有效
短句来源
     all effective.
     全部有效
短句来源
     From Effective ness to Success
     从有效到成功
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     Moral Operation
     道德运算
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Several existing page replacement policies such as FIFO, LRU, etc. are analyzed. Some defects in them are found out, Especially, when the number of pages required by a loop program is greater than that assigned by the operating system, the phenomenon in which the hit ratio continually keeps zero will happen. In order to solve this problem,a new replacement policy, called JRU(Just Recently Used) is presented and its theoretical analysis and experimental performance assessment are also given.

本文首先对一些现存的页面替换算法(如FIFO,LRU等)进行了分析,并指出了这些算法的缺陷,尤其是当循环程序所需页数大于分配给它的实存页数时,将会出现连续页面失效,使系统几乎没有有效运算时间的所谓“颠簸”现象,为了解决这个问题,根据程序的局部性原理,提出了一个新的替换算法JRU(Just Recently Used),并对此算法进行了理论与实验上的分析和性能评价。

At present, He orientation of the flua vector and the speed feedbacd in AC motor vector controlled system are geverally realized by optical-code disk. But the disk is liable to be interferedand striked, especially difficalt in installation, these problems can cause the oriemtation deviationof the flux vector, further resultin system runing out of control. In this paper, based on the unitedtheory of AC motor vector controlled system, a mathematical model on the flux senser and speedcalculating is introduced and...

At present, He orientation of the flua vector and the speed feedbacd in AC motor vector controlled system are geverally realized by optical-code disk. But the disk is liable to be interferedand striked, especially difficalt in installation, these problems can cause the oriemtation deviationof the flux vector, further resultin system runing out of control. In this paper, based on the unitedtheory of AC motor vector controlled system, a mathematical model on the flux senser and speedcalculating is introduced and the differential element in the model is simplified to realized easily,the model's variables are both detected and controlled rotor voltage and current with rotating-dif-

目前交流电动机矢量控制系统中,磁通矢量的定向和速度反馈大都由光码盘来实现。而光码盘本身在实际应用时易受干扰,怕碰撞,安装困难。这些因素都会造成磁通矢量的定位偏离使系统运行失控。文中基于交流电机统一理论,以自控式双馈电机矢量控制系统为例,介绍了双馈电机磁通观测和速度计算的数学模型,并从便于实现的角度出发,对模型中的微分项进行了简化处理,使模型中的变量均为可测可控的转子电压和电流,其频率为转差频率,有效运算符号都为加减法,从而在体系上初步形成一个无速度传感器的双馈系统模式。

Considering the shortcomings of the current surge diag- nosis methods for blower fans, a more available method based on neural network is presented.The feature extraction for surge has been detailed, among many features that effect the surge diagnosis, a main factor, deflexion, has been found by this method. The simu- lation result shows that this method is reasonable and feasible.

基于传统诊断方法的缺陷,深入研究了将神经网络技术应用于风机喘振的理论与方法,对喘振故障特征的提取做了深入细致研究,在众多的影响因素中,提取出了影响较大的因子,经仿真和实际样本验证,取得了良好效果,验证了该方法的有效性和可行性。该法充分利用了时域内所采集到的数据,通过简单而有效的运算,既可准确反映故障的类型,又易于实现。

 
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