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- Velocity model building for prestack depth migration is a model based iteration process. 摘要叠前深度偏移速度建模是一种基于模型的迭代修正过程。
- Therefore, it has the potential to image reflectors in depth without requiring the velocity model. 因此，它有可能反射的形象，而不需要进行深入的速度模型。
- The results have been used to guide the pickup of first breaks and to construct initial velocity model for refraction statics. 在折射静校正处理中应针对不同地貌特徵建立初至拾取原则和初始速度模型，以确保折射静校正结果的准确可靠。
- The tomographic inversion of the surface layer velocity model with the first break is the important base of the tomographic static correction. 初至波表层速度模型层析反演是层析静校正的重要基础。
- The prestack migration into space should be based on accurate isochrones through the heterogeneous velocity model and the wave incidence angles. 空间叠前偏移是基于精确的通过不均匀速度模型的等时线和波的入射角。
- Equivalency to extract FPS of the crustal velocity model of Seismographic Station of University of California, Berkeley, and that of USGS was demonstrated. 论证了伯克利加利福尼亚大学的地壳模型与美国地质调查局的地壳模型对于求断层面解的等效性.
- As an inverse problem,migration velocity analysis tries to infer the velocity model from the picked residual curvatures on common image-point gathers(CIGs). 作为一种反问题方法,偏移速度分析利用共成像点道集上的剩余曲率成像点来反演速度模型。
- Comparison of Induced Velocity Models for Helicopter Flight Mechanic. 直升机飞行力学诱导速度模型的比较。
- As an inverse problem, migration velocity analysis tries to infer the velocity model from the picked residual curvatures on common image point gathers (CIGs). 作为一种反问题方法，偏移速度分析利用共成像点道集上的剩余曲率成像点来反演速度模型。
- The migration imaging range is determined according to the structural attitude of 3 D velocity model , and the variable range 3 D prestack depth migration is done on the CSP ... 用三维相移加校正方法在炮集上实现三维叠前深度偏移，并根据三维速度模型构造形态，自动确定偏移后成像孔径进行变范围偏移叠加，提高三维构造形态清晰度。
- The settling characteristics and terminal velocity of granular sludge in UASB reactors was discussed by using a terminal velocity model on the view of hydrodynamics. 从流体力学角度,通过建立沉降速度模型探讨了UASB反应器中颗粒污泥的沉降性能与终端沉降速度。
- The results of two inversion algorithms indicate that RAGA is superior to SGA.RAGA inversion is an applicable method for both of simple and complex velocity model. 二种算法的反演计算结果说明，加速遗传算法性能优于标准遗传算法，无论针对简单速度模型还是复杂速度模型，加速遗传算法都是适用的。
- Spatially variable velocity models need lo be derived for P-and S-waves prior imaging. 空间可变的速度模型来源于对P、S波预先成像。
- The quality of the image produced by current depth imaging algorithms is inextricably linked to the adequacy of the velocity model, which can be difficult to estimate in geologically complex areas. 图像质量产生的电流深度成像算法有着千丝万缕的联系是否有足够的速度模型，可很难估计在地质复杂的地区。;
- Based on the geoscience transects and the seismic data, the authors have calculated the thickness of the crust and constructed the velocity model of some metallogenic provinces in China. 摘要文章汇集了中国11条地球科学断面和数十条人工地震剖面，对中国大陆的地壳结构进行了综合研究。
- Based on the theory of gas dynamics, the comparison of several models used in the literature and experimental results, the velocity model of atomized gas was established. 通过比较文献中出现的几个数学模型,结合试验测定结果,在空气动力学理论的基础上提出了高速电弧喷涂雾化气流数学模型。
- Gazelles can move with astonishing velocity. 羚羊跑起来速度惊人。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- Standing by him was a model worker. 站在他旁的是一位劳动模范。
- The velocity models obtained by using different data selection criteria and parametrization display similar basic features,showing a high P wave velocity at shallow depth in the SE quadrant, in close connection with a high gravimetric Bouguer anomaly. 选择了几种判别标志与参数化办法以显示其类似的基本特征。 表明在火山的东南象限在浅层，有P波的高速分怖，它同布格重力高异常有密切关系。
