与采用精细网格算法相比，其计算速度大大提高。
The computation speed of adaptive grid roughening algorithm increases greatly compared with that of the fine grid method.
采用地理细网格场的分析方法，揭示了该山区总辐射资源的空间分布情况。
The geographic space distributive charater of the global radiation resources in the mountain area was analyzed by using a small geographic network method.
因此，这种局部和并行算法仅仅涉及一个粗网格上的整体逼近和细网格上的局部校正。
Hence, these local and parallel algorithms only involve one small original problem on coarse mesh and some correction problems on local fine grid.
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