Under homogeneous conditions, the application of this equation may give a differential approximation of high order accuracy for Lapace equation, Poisson equation and heat conduction equation.
在矩形网格上的九点差分近似的正确公式。使用它，在均质情况下，对拉普拉斯方程、布阿松方程和热传导方程可以构造出高阶精度的差分近似。
Aggregation query over high rate data streams: basically, most existing aggregation algorithms adopt the approximation technology to obtain the advancement of rate by sacrificing the accuracy.
高速数据流聚集查询：目前已有的聚集算法绝大多数是采用近似技术，以牺牲精度来换取速度的提高。
For a Doppler radar homing seeker with high pulse repetition frequency, the continuous wave approximation is not only simple, but also has a high calculation accuracy.
对于使用高脉冲重复频率的主动多普勒雷达导引头，连续波近似法不仅计算相对简单，而且可以给出较高的计算精度。
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