查询词典 inversion theorem

To obtain a more reliable Q image, a waveform inversion method was developed for estimating Q from the walkaway VSP and surface seismic data.

为了获得更可靠的地震波衰减图像，研究采用了一种基于Walkaway井地联合地震资料的波形反演来求取Q值的方法。

The frequency conversion control of washing machine is pass power source voltage communication -- dc -- communication, or communicate -- the electromotor that washing machine brings to bear on again after dc inversion if not have

洗衣机的变频控制是将电源电压经过交流——直流——交流，或交流——直流逆变后再施加到洗衣机的电动机如无

The success or failure of elastic wave equation inversion are relevant to the selection of forward modeling methods.

正演模拟方法的选取与弹性波方程反演的成败直接相关。

A new method for blind inversion of Wiener system was proposed based on the nonlinear BSS.

提出了一种基于非线性盲源分离的 Wiener 系统求逆方法。

Another climatic characteristic is cold winter with large daily temperature difference, favoring thermal inversion especially in clear and windless days.

气候因素的另一特点是冬季寒冷，日温差较大。

To all abnormities we conceive them caused by the acclivitous allegrettos that might construct all needed 3-D complex model , and in this paper we proved the possibility and positive significance for 3-D inversion on acclivitous allegrettos to construct all needed 3-D complex model .

对于任意异常则都设计成是由倾斜板状体引起的，并在理论上证明了倾斜板状体对构造任意复杂三度体模型的可能性以及对三维反演的积极意义。

As the aeolotropism development of cracks in carbonate reservoir, so far not a very good seismic reservoir crosswise prediction method application for the aeolotropism carbonate reservoir, especially in the seismic, logging joint inversion, is mainly continues to use the reservoir crosswise prediction method that suitable for the isotropic clastic rock reservoir.

由于碳酸盐岩储层裂缝发育的非均质性，到目前为止还没有一套推广应用很好的针对碳酸盐岩非均质性储层进行地震储层横向预测的方法，尤其是在地震、测井联合反演方面，主要是沿用适合于较均质的碎屑岩储层地震横向预测技术。

Identification and forecasting for igneous rock is one hard problem of exploration activity, because it has extreme aeolotropism. By firstly synthetically utilizing seismic analysis, well logging restricted inversion, core well core and electric log analysis method and so on, the igneous rock reservoir of Gaoqing oilfield is effectively identified and divided into one to four four phases according to igneous rock erupting phase.

由于火成岩具有极强的非均质性，对其识别与预测是油气勘探的难题之一，首次综合使用地震分析、测井约束反演、取心井岩心与电测曲线分析等技术和方法，有效地识别了高青油田火成岩储集体，并根据火成岩喷发期次，将高青油田孔店组火成岩储集体分为1、2、3、4期。

To eliminate the limit, a hybrid objective function weighted by antitangent function is constructed, which behaves like an objective function of norm for small data points and like an objective function of norm for large data points, restraining the influence of false data points on inversion procedure.

为了解决这一问题，利用反正切函数作为加权因子构造了反正切混合目标函数，并利用模型试验进行了验证。简要阐述了最优化目标函数的构造方法；给出了利用反正切函数构造混合目标函数的基本原理，并对目标函数的微分特征和概率特征进行了分析；利用模型论述了反正切混合目标函数中控制参数μ和σ的意义，μ控制反正切函数变化的速度，σ控制数据误差项被处理或加权的方式。

Methods First, to lengthen Achilles tendon by using the slipping prolengthening or aponeurotomy of inversion "V" type on gastrocnemicus muscle, then split tibialis posterior and long peroneal muscle tendon respectively, and finally, make a suture with weaving prosthesis subcutaneously on the lateral dorsum of feet.

先行跟腱滑动延长或腓肠肌腱膜倒&V&形切开，然后行胫骨后肌腱及腓骨长肌腱分别对半剖开，并将前者外侧半与后者内侧半在足背前外方皮下编织缝合。

I was up all night because I was in pain, she said.

我整夜，因为我在疼痛，她说。

A crow caws /craoks.

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