Because of influence of aperture of migration operator, the image of 3-d seismic data volume in space is smeared after migration, which is unfavorable for detecting the faults.
但由于偏移算子的孔径影响，经偏移得到的三维地震数据体在空间上被模糊了，不利于进行断层检测。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
Emerson builds migration solutions with open communications technologies which connect with existing systems while adding the latest operator interface, event and alarm management capabilities.
艾默生利用与现存系统相连的开放式半导体技术建造了移动解决方案，增加了最新的操作界面、事件、报警管理能力。
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