查询词典 migration velocity

The numerical tests show that, DSR equation migration methods such as common azimuth migration have a promising prospect in areas with strong variations of velocity, e.g., subsalt, reef and buried hill, etc.

数值试验表明，共方位角偏移等DSR方程叠前深度偏移方法在盐体或礁体、古潜山等强横向变速地区具有很好的应用前景。

Xwfd pre-stack migration based on wave equation has strong adaptability to the medium which has strong variable transverse velocity and it can be used for migration with dual-complexity.

波动方程的频率空间域有限差分深度偏移对介质速度横向变化有较强的适应性，适宜于复杂构造的偏移成像。

Influences of several factors on the image quality of the poststack migration are further investigated, including interstation spacing, noise level of the data, velocity model used in migration, and earthquake distribution (incident direction of source fields).

首先，考虑盐的浓度的影响，建立了天然气含有甲烷和丙烷两种组分的水合物形成的相变曲线，即温度和压力关系曲线，同时也建立了甲烷和丙烷两种组分天然气溶解度的加权关系。

Prestack depth migration is briefly described, which consists of prestack depth migration imaging, traveltime calculation and construction of velocity model.

简要介绍了叠前深度偏移的方法技术，主要包括叠前深度偏移成像，旅行时计算和速度模型建立3个部分。

Prestack time migration is a key technology that can image steep dip angle formation and complex fault system. It yields accurate velocity field and definite fault compared to poststack time migration.

叠前时间偏移技术是一项解决地层倾角大、断层复杂成像的关键技术，可以求取准确的速度场，偏移后断层清晰。

Migration velocity analysis and migration imaging constitute two important parts in seismic data processing.

偏移速度分析和偏移成像是地震资料处理的两个重要组成部分。

The accuracy of migration velocity modeling directly influences the effects of migration imaging.

偏移速度建模的准确性直接影响偏移成像的效果。

The accuracy of migration velocity modeling affects the result of migration imaging considerably.

偏移速度建模的精度是影响偏移成像效果的重要因素。

So we can use any 2D prestack procedure to process them, such as time migration, depth migration and velocity analysis.

它通过投影变换的方法，将三维叠前数据体投影为一系列的径向二维叠前数据体，从而将三维叠前问题转化为一系列的二维叠前问题来进行求解，使得三维叠前资料的偏移成像可以在中小型计算机上进行。

The tracer migration that the tracer concentration continuously injecting into semi-infinite sand column(initialization velocity is zero) and the pollutant continuously enter into aquifer through a discharging well that completely enter into the dive aquifer are two representative groundwater pollution problems ,Then this paper respectively sets above two decided solution problems and the union simulation problem of groundwater and solute as examples, from the question description, the mathematical model selection and determination, the parameters selecting to carry on the value computation, the read-write of attribute data , visualizes by the IDL programs, carries on the numerical simulation and the visualization post-processing to the above groundwater pollution problems, and according to the numerical solution and the solute migration curves, briefly analyzes and predicts the temporal and spatial distribution features and distribution range of contaminant concentration.

然后分别以半无限长沙柱中连续注入示踪剂浓度的运移、污染物通过一完全进入潜水层的排放井连续进入含水层这两个典型地下水污染定解问题及地下水流和水质联合模拟问题为例，从问题描述、数学模型选取确定、参数选取到运用IDL编程进行数值计算、属性数据读写、可视化，对上述地下水污染问题进行数值模拟和可视化的后处理，并根据数值模拟的数值结果和溶质运移曲线，对污染物浓度的分布范围及随时空变化趋势作了简要分析预测。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。