我们在直角坐标系中处理，在这里dV有可能变成，或者它们的其他排列。
Well, we can do that in rectangular coordinates dz dx dy where dV becomes something like, maybe, dz dx dy, or any permutation of these.
基于对轧件与轧辊截交线的分析，提出了在二维直角坐标系中确定轧件咬入接触点的方法。
Based on analyzing the intersection curve between the rolled-piece and roll, the method of determining the nip point is put forward.
在水下被动目标跟踪系统中，直角坐标系下的扩展卡尔曼滤波器容易发散而导致滤波精度很差。
Concerning the problem to instability and low accuracy of the passive filter on bearings-only target tracking, a modified adaptive Extended Kalman filter algorithm on polar coordinate is presented.
该滤波算法将球坐标系中的测量信息转换到直角坐标系下进行滤波，并消除了偏差。
In this algorithm, the measured value of seeker initially set in polar coordinate system was converted into the rectangular coordinate system for filtering, and the bias was eliminated.
该滤波算法将球坐标系中的测量信息转换到直角坐标系下进行滤波，并消除了偏差。
In this algorithm, the measured value of seeker initially set in polar coordinate system was converted into the rectangular coordinate system for filtering, and the bias was eliminated.
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