The space correcting of 2Dseismic data is a foundation of structural mapping.
二维地震资料的三维归位（空间校正）是编制构造图的基础。
2
During the 2dseismic prospecting, gas anomaly was found in part of certain sector.
在该煤田二维地震勘探中，发现部分地段存在含气异常。
3
During exploration and production, the discovery of oil and gas reserves can be considered to be the result of 2dseismic work, 3d seismic work, and well exploration.