查询词典 inversion of a point

In the chapter 4, we discussed the generalized linear inversion method of direct current IP data from the angle of the least squares method. The computed speed of inversion can be greatly raised by calculating the partial derivatives matrix combining the reciprocity principle with Broyden\'s quasi-Newton method.

在第四章中，从最小二乘广义线性反演的角度，探讨了直流激电数据的广义线性反演方法；在偏导数矩阵的计算过程中，通过将互换原理与Broyden拟牛顿技术相结合的计算方式，可大大提高反演的运算速度。

The surface southeast wind is a condition for the generation of advection fog, but it contributes to the disappearance of radiation fog. The inversion in the radiation fog is thick and strong ,but it is weaker or no inversion in the advection fog. The evolution of stratification from the occurrence to the destruction in the radiation fog is from stable to unstable, while the advection fog from unstable to stable.

底层东南风是平流雾生成的条件，却对应于辐射雾的消亡；辐射雾逆温厚而强，平流雾则为弱的逆温或无逆温；辐射雾生消演变对应于大气层结由稳定发展为不稳定，平流雾则对应于由不稳定趋于稳定。

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。

This paper provided a regularizing operator referring to the inversion method of math to the ill-posed problem and Hirleman"s theory. It is proved the inversion of Mie" theory can get a more accurate resolution by the regularizing idea.As to a laser light sizer, this paper discussed the measurement range and tried to get the judge index of the range of it.

对于采用Mie理论为基础的激光粒度仪的反演过程，使用构造正则算子θ-2提高反演精度，通过模拟证实利用正则化的思想可以明显提高Chahine叠代独立模式粒度反演的容差限。

Next, in chapter 3, we compare the current densities in inversion region and accumulation region of the RTO oxides with and without ANO-DAC. We found that the leakage current in inversion region is smaller with ANO-DAC compensated, but the current density lowering is slower with time past.

接著，在第三章我们对无阳极氧化与经过阳极氧化补偿后的氧化层做比较，比较在反转区与聚积区的电流密度，发现在阳极氧化补偿后反转区虽有比较小的漏电流，但随著时间经过，电流降低速度比较慢。

A field inversion is the most expensive operation on scalar multiplication, and the number of inversion determines the performance of scalar multiplication.

求逆是标量乘法中最耗时的运算，求逆运算次数的多少直接决定标量乘法的性能。

The predictions are identical with that of foreign underwater acousticexperiments.The third,the scattering theory are applied in prediction of seareverberation and inversion of sea bottom parameter.Shallow-sea monstaticreverberation is predicted by combining shallow-sea normal mode theory withscattering theory.Then with simulated annealing of neural network and scatteringtheory accurate inversion of sea-bottom parameter and surface roughness are given.

第三，把散射理论应用于海洋混响的预报和海底介质参数的反演，首先通过浅海简正波理论和散射理论相结合，对浅海单程混响进行了预报；然后利用神经网络理论中的模拟退火法和散射场理论相结合，准确地反演了海底介质参数和表面粗糙度。

After a multi-scalar analysis of Bouguer gravity, related physical property inversion and geological structural inversion along representative profiles, 3-D velocity tomography of seismic data from stationary network of seismography stations and NEIC reports, the study of epicentral distribution and geological data were carried out in order to perform this integrated research.

对研究区布格重力数据进行多尺度分析和典型剖面的物性与结构反演，并利用中国固定地震台网、NEIC等记录到时与波形资料对研究区进行三维波速成像，结合震中分布及地质学方面的数据资料开展综合研究。

A first inversion triad, expressed numerically as a 6-3 chord, has its original middle note as its bass, with the original top note a third above it and the original bottom note, the root, a sixth above it. Thus the tonic triad of C major is C-E-G in root position, and E-G-C in first inversion.

三和弦第一转位用数字6-3和弦来表示，以原中间音为低音，原最高音为其上的三音，原最低音，根音，为其上的六音。C大调主音三和弦在原位为C-E-G，第一转位为E-G-C。

We discuss the feasibility of the inversion condition and the uniqueness of the inversion result.

相比VTI介质，ATI介质中增加了对称轴倾角与方位两个参数，问题的复杂性可以通过方位变化的非双曲时距来解决。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。