使用地表数据兼VSP数据偏移结果得到改善，偏移成像被准确地收敛于反射点的真实深度。
The migration results are improved by using both the surface data and VSP data: the migration images are accurately converged to the true depth of the reflectors.
该技术是将动校正后的数据偏移到倾斜反射界面零偏移距位置上，能够解决深层构造成像问题。
The normai moveout corrected seismic data are mi-grated to the zero offset dipping reflector, which solves the problem in deep layer image.
传统的挖掘频繁项集的并行算法存在数据偏移、通信量大、同步次数较多和扫描数据库次数较多等问题。
There were problems in traditional parallel algorithms for mining frequent itemsets more or less: data deviation, large scale communication, frequent synchronization and scanning database.
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