The nonlinear inversion algorithm based on MLNI is applied to inversion problems which can concentrate the imaging region to a particular range instead of whole 3 D domain.
在反演中采用基于MLNI的非线性反演方法，利用这种方法可以将成像区域集中于一定范围内而不是整个三维空间。
Especially, 3-d velocity image in Yunnan region and surroundings have been obtained.
特别是在云南地区已得到了该省及其邻近地区的三维速度图像。
Furthermore, the 3-d boundary value problem in boundary layer region is decomposed to 2-d plane strain and torsion problems.
进一步在边界层区域将三维的边值问题分解成二维的平面应变和扭转问题。
The jet penetration height, the separation distance, the separation boundary and the pressure coefficient within the separation region are estimated, and the 3-D correction is also adopted.
该模型可计算喷流穿透高度、分离区长度、二维分离区边界、分离区平台压力系数，并可对分离特性进行三维修正。
Objective To obtain the CT image 3 D reconstruction of head and neck region of the first Chinese visible human.
目的对首例中国可视化人体头颈部CT影像进行三维重建研究。
While reconstructing the 3-d velocity structure, we have carefully relocated hypo-centers of 129 earthquakes in the region.
本文在获得三维速度图象的同时，还重新确定了该区的129个地震的震源位置。
A 3-d theoretical model of an OWC with a harbour system has been presented, based on the method of eigenfunction, source distribution and matching the inner region with outside.
本文根据特征函数加源分布、内外域拟合的方法，建立了振动水柱港池系统的三维理论模型。
A 3-d theoretical model of an OWC with a harbour system has been presented, based on the method of eigenfunction, source distribution and matching the inner region with outside.
本文根据特征函数加源分布、内外域拟合的方法，建立了振动水柱港池系统的三维理论模型。
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