查询词典 inversion problem

The elements of optical waveguide strain-stress measurement and fiber bragg grating strain-stress measurement system based on wavelength division multiplexing and spatial division multiplexing are emphatically discussed; the displacement regularity of stress field induced by roadway group excavating and short wall mining process is analyzed in detail; the concept of roadway "equivalent radius","correcting coefficient of coal and rock mass mechanical parameters",and "mining affecting coefficient" is put forward; the calculation method of "equivalent radius", the method of inversion of "correcting coefficient of coal and rock mass mechanical parameters", and the "mining affecting coefficient" determination method with the field measurement results and so on are provided.

重点研究了光波导应力应变测量原理，以及基于波分复用和空分复用技术基础上的布拉格光纤光栅应力应变测量体系；详细分析了近距离巷道群开掘工作和短壁体系回采工作诱发的应力场的重新分布规律；提出了巷道"当量半径"、"煤岩体力学参数修正系数"、"采动影响系数"等概念；给出了"当量半径"的计算方法、"煤岩体力学参数修正系数"的反分析求算方法、以及通过现

This paper introduces a rapid genetic algorithm, which improves standard genetic algorithm through raising the computation to more efficient. RAGA has better practicability in velocity inversion.

这里介绍一种加速遗传算法，该算法通过提高计算效率改善了标准遗传算法，加速遗传算法在速度反演应用中具有更高的实用价值。

The stochastic inversion based on reservoir attribute recomposition is an effective method for reservoir characterization and prediction.

在对储集层特征进行重构基础上的随机模拟地震反演是储层表征与预测的有效方法。

In order to get the information about focal-mechanism variation in earthquake rupture process and redisplay the mechanisms of different sub-events at different locations, for the first time, we developed a linear inversion technique for investigating the mechanism variation and rupture process.

为了获取震源机制在地震过程中的变化信息，实现对震源区不同空间位置子事件不同震源机制的再现，本文首次提出通过线性反演过程对地震破裂过程成像的方法和技术途径。

The atmospheric refractivity profiles below the height of the GPS receiver are obtained with this inversion technique, as well as the bending angle of rays.

将该反演方法应用于观测数据的反演，获得了观测点高度以下的大气折射率剖面，以及电渡弯曲角。

Based on the model, retrieves the relative permittivity and relative permeability of the coating- material by iterative inversion of a neural network from the measured antenna temperature.

在此模型的基础上，用神经网络迭代法从测得的天线温度反演了隐身涂层材料的的相对介电常数、相对磁导率。

A new multi-exponential inversion method for NMR relaxation signals is presented and tested,which is based on differential evolution algorithm.

提出了一种基于差分进化算法的核磁共振弛豫信号多指数反演新方法。

Alliteration, inversion, etc. In a word, simulating the forms of the source language poems does not only bring us the joy of dancing in fetters, but also explores the representability of the target language.

当然，既然不同语言系统在外观上似无共同之处，我们不可能处处照搬，但其中必有相通的道理和规律可循，理应可以做到哪怕是部分的平行对应，例如行数、音节数、节拍数、韵式，甚至头韵、倒装等。

It is very significant to study the inversion of resistivity sounding..

为此，对其核心技术——电测深反演的研究，具有十分重要的意义。

The valid and effect of this approach is proved in the application of inversion of resistivity sounding by simulation.

通过数值试验仿真，证实了其在电测深反演应用中的有效性，并取得了良好的反演效果。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。