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- dust migration velocity 粉尘驱进速度
- The authors propose a migration velocity analysis method based on a global optimization. 提出用全局最优化偏移速度分析方法求取介电常数分布。
- 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。
- Since offset ray parameter is proportional to angle of incidence at the reflector, CAI gathers provide a complete set of tools for migration velocity analysis and AVO analysis. 由于照射角和炮检距的对应关系 ;共照射角像集又为偏移速度分析和AVO(振幅随炮检距变化 )分析等提供了有力工具 .
- 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。
- This thesis bases on the acoustic wave equation, uses the wavefield extrapolation operator in frequency-wavenumber domain to analyze the migration velocity error. 声学波动方程描述了声波动现象的物理本质，本文基于声学波动方程，借助于频率波数域的波场延拓算子来开展偏移速度误差的分析。
- In the experiment pit, the migration velocity was 2.27cm/d under an artificial condition of 5mm/h sprinkling intensity for 3 hours each day, the vertical diffusivity Dx was 7.75cm2/d. 在2m2实验坑中，以5mm/h喷淋强度每天喷淋3h的条件下，氚示踪剂以2.;27cm/d的速度向下迁移， DX为7
- After reviewing the basic principle of the migration method based on double-square-root (DSR) equation, we introduce a fast angle domain imaging algorithm to facilitate migration velocity analysis. 摘要简单回顾双平方根(DSR)方程偏移一般理论之后，介绍了适应偏移速度分析的角度域成像快速算法。
- For enhancing the migrated imaging，these techniques，like DMO，migration velocity field smoothing and pre-stack depth migration，are used. 采用DMO、偏移速度场平滑、叠前深度偏移等技术提高偏移成像精度。
- ON THE MIGRATION VELOCITY OF PARTICLES 浅谈粒子的驱进速度
- The motor car disappeared in eddy of dust. 汽车在一片扬尘的涡流中不见了。
- Residual migration velocity analysis 剩余偏移速度分析
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- The car raised quite a dust as we drove off. 我们走时车子扬起了一阵尘土。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- How many enemies bit the dust in the battle? 在这次战斗中打死了多少敌人？
- The city lay in the dust after the battle. 战斗结束后，全城成为废墟。
- The dust on the shelf show up in the sunlight. 在阳光照射下能看见架子上有灰尘。
- He flicked away the dust with a cloth. 他用一块布拂去灰尘。
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
