Aiming to rasterize topological region data in GIS, we present a fast algorithm named as difference boundary-labeling and accumulating-scan algorithm.
针对GIS面状拓扑数据，提出了一种快速栅格化算法———差分边界标志与累加扫描算法。
This data recovery software can fast scan disk sectors, rescue the damaged files and copies the correct data to hard disk as possible as it can.
它能够快速地扫描扇区，拯救已损坏的文件，并仅可能地将正确的数据复制到硬盘中。
This data recovery software can fast scan disk sectors, rescue the damaged files and copies the correct data to hard disk as possible as it can.
它能够快速地扫描扇区，拯救已损坏的文件，并仅可能地将正确的数据复制到硬盘中。
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