查询词典 geometric

The method includes the following steps: firstly, a spherical neighborhood of present sample points is established by using the geometric spherical-modelling theory and all the sample points contained in the spherical neighborhood are adopted as candidate neighbor points, thus not only preserving the effectivity of the dimension reduction capability when data sets are sparse but also getting the advantages of low-sensitivity to isolated points and good stability of the preserved topological structure; then a data relevance matrix more matching semantics can be obtained by relevance measurement based on route clusters to update the candidate neighbor points in the spherical neighborhood and optimize the regular neighborhood space of the present sample points, thus improving the phenomenon that the dimension reduction of sample sets provided with folded curved faces is apt to suffer the integrated-structure distortion in case of heterogeneous data distribution.

首先利用几何开球原理建立当前样本点的球状邻域，将包含在球状邻域内的所有样本点作为候选近邻点，不但能够保持在数据集稀疏情况下的降维性能的有效性，而且具有对孤立点敏感性不高、保留拓扑结构稳定性好的优点。然后利用基于路径聚类的相关性度量得到更符合语义的数据相关性矩阵，用来对球状邻域内的候选近邻点进行更新，优化当前样本点的规则邻域空间，改善了当数据不均匀分布时在带有折叠弯曲面的样本集上降维容易出现整体结构扭曲的现象。

Based on the theory of tribology and the wear characteristics of cylinder bore-piston ring, the regular micro geometric surface topography was honed on the cylinder bore using the technology of laser texturing.

基于摩擦学理论和缸套／活塞环的润滑磨损特征，采用激光微造型技术，在缸套内表面进行规则微观几何形貌的造型。

On the base of these, the electron diffuse scattering, being highly intensive and confined in reciprocal space to a regular geometric surface exhibiting the translation symmetry of the b.

发现在各倒易截面中，电子漫散射强度集中分布在一较窄的带状规则几何图形上，并且，各几何图形同与之相应的对应于面心立方f.c.c。

The dissertation asserts that the interface of liquid-vapor is not a regular geometric surface, but a fractal one fluctuating with time and changing with the conditions (such as the pressure, temperature, and so on).

另外，在气液界面层的外边缘，存在一个温度谷值，而在靠近界面附近存在一温度峰值。

For two possible geometric structures,square and regular tetrahedron,the electronic structures of ground state and structure parameters of the O_4,O-_4 and O+_4 are calculated according to the principle of minimum energy.

计算了2种可能的空间结构——正方形和正四面体，分别得到了这2种结构的中性分子O4，正一价分子O+4和负一价分子O-4的基态电子结构，并根据能量最低原则确定了各自的结构参数，从而得到了O4分子2种结构的基态总能量、一价电离能及电子亲合势能。

This research dissects two regular triangles and assembles them into a large regular triangle. Using GSP and AutoCAD to draw and analyze geometric shapes, four dissection models and nine dissection methods are constructed. The extreme values under all conditions are also discussed, as are the best and generic dissection models. There is a Three-section type "best dissection model" and a semi "generic dissection model."

本文研究两正三角形，经切割后拼成另一大正三角形；期间以GSP及AutoCAD绘制分析几何图形，并建立了4种分割模式，得到了3段式「最佳分割模式」及准「通用分割模式」，提供这方面问题一个可应用於所有条件之完善解决方案。

Firstly, the infrared optical system was usually designed to large-sized relative aperture system by reason of the target detected by the system was far, and weak radiant energy. However, the infrared image was suffered from geometric distortions due to wide-angle design of the infrared optical system.

为了获得更多的辐射能量，红外光学系统一般设计为大相对口径系统，这就不可避免的造成光学上像差校正的困难，进而导致红外图像的几何畸变。

The general diffusion process can be obtained as a limiting case, so that we have a unified framework in understanding existing models in option pricing theory, including the geometric Brownian Motion, the model of Constant Elasticity of Varianc, the Residual Volatility and term structure of interest rates. Our model is capable of demonstrating volatility smile and stable relative deviation from real data.

我们建立的一般框架可以统一理解目前已经熟知的几何布朗运动、广义方差常弹性、残余波动率、利率的期限结构等理论模型，也能描写观察到的波动率微笑和稳定的相对偏差。

In this tutorial, I show you how to mix cool retro geometric shapes into your photos.

本指南中，我告诉您如何组合酷复古几何形状到您的照片。

Combining RFD with SDS,the program can automatically prove an extensive class of geometric inequalities involving radicals.

将RFD算法和差分代换方法相结合，给出了一大类具有相当难度的几何不等式的机器证明。此前该课题仅有的工作是杨路关于二次根式的结果。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼