反重

As we know, with the exception of the Haar function, uni-real-valued orthogonal wavelet filter banks with compact support lack symmetry and do not possess linear phase.

我们知道，紧支撑正交的单一小波除Hair小波外不具有任何对称性，它用作滤波器不可能有线性相位，而由实单一紧支撑正交的尺度函数构造出的二重尺度函数却是对称的，对应的二重小波可以是对称或反对称的，从而使得这种小波在信号处理的过程中具有线性相位。

This paper has given a thorough investigation into theapplication of BP neural network to gravitational density interface inversion as well as the implementation of wavelet theory in potential field decomposition and, on such a basis, analysed and evaluated the prospect of applying wavelet neural network to the inversion of gravitational and magnetic data.

文摘：对BP神经网络在重力密度界面反演以及小波分析在位场分离上的应用进行了深入的研究，进而对小波神经网络在重磁资料反演中的应用前景进行了分析、评价。

In the research of techniques in curved surface reconstruction and feature extraction, the modeling of NURBS interplation curved surface based on rectangular is focused, in which centripetal parameter is applied to construct node vector, the application of interplation method guarantees the accuracy of curved surface construction, bicubic NURBS curved surface is taken as an example to demonstrate the process of curved surface modeling, and the effectiveness of NURBS is approved in application; Meanwhile, the application of feature techniques in reverse engineering is also diSCUSSed, the recognition and extraction method of feature curved surface are investigated, the relationship between feature recognition and the curvature of curved surface is discussed, with the application of linear and non-linear least squares procedure, data fitting of conicoid in ball surface, cylinder surface and cone surface is

以上述的研究工作为基础，根据企业的实际需求选定轻客和重卡作为研究对象完成了基于反求工程的车身改型设计和优化的工程实践，通过工程实践对反求工程各关键支撑技术进行了验证，所开发的新车型也获得了良好的市场反应。

Vindoline content showed a positive correlation with leaf width, plant height, whole-plant leaf weight, 100-leaf weight, petal diameter and leaf length; the positive correlation was significant for first lateral branch number and stem diameter (P.05) and notable for internodal distance.

本文利用反相高效液相色谱法检测了23种国内外长春花主栽品种的文多灵含量，对文多灵含量与品种的12个主要农艺性状(包括株高、节间距、茎直径、一级侧枝数、叶片长、叶片宽、叶片长宽比、百片叶重、全株叶片重、花瓣直径、种荚长度和种子数/荚)的相关性和通径进行了分析。

Thirtieth days after treatment, the average number of trees and fresh weight control effect were 87.1 and 93.4% at the level of 13.5 to 22.5 g/ha. Tribenuron-methyl 75% WG had highest effect to Chenopodium album, Cephalanoplos setosum, Salsola collina, Amaranthus retroflexus and the average number of trees and fresh weight control effects were over 99% after 30 d.

结果表明：75%苯磺隆WG对莜麦田中的阔叶杂草具有较好的防效，药后30d对阔叶杂草的平均株防效和鲜重防效分别为87.1%和93.4%，生产上建议使用剂量为13.5~22.5g/hm^2。75%苯磺隆WG对藜、大刺儿菜、猪毛菜、反枝苋的防效最好，药后30d的平均株防效和鲜重防效都达99%以上。

The heavy armored vehicle is supported by eight pairs of low-power repulsorlift skis along the rear section that constantly readjust to encountered terrain, propelled by four repulsorlift plates mounted under the forward carriage.

该重装甲车被装在尾部区域，始终调整自己以适应地形的八对低功率反重力装置支撑，由装在车架前方的四个反重力提升盘推动。16个起伏的skid盘（skid一词也是查遍了所有字典，包括专业的而没有合理的解释。

Sous-lieutenant Brussaux moves then to Lyons-la-Forêt and Marines and finally regroups the whole 54e BACA.

布吕索少尉途经Lyons-la-Forêt和Marines，并最终对整个第54独立反坦克连进行了重编(反坦克，防空和其他部队)。

Practice has proved that the seismic and gravity joint identify deep-buried hill is a more effective technical mean. This article will be gravity-seismic joint inversion interface of the main contents of the study.

实践证明，重震联合识别古潜山等深层目标是一种较为有效的技术手段，因此本文将重震联合界面反演作为研究的主要内容。

In the usual HQET, as an approximation for very large mass of the heavy quark, quark and antiquark fields are completely decoupled and treated separately in the effective Lagrangian.

原有重夸克有效理论的出发点是在重夸克质量m〓很大的条件下夸克与反夸克场几乎无耦合。

The problem is how to consider the relativistic corrections to this potential. Adopting the assummation that the quark interaction is the sum of the usual one-gluon direct exchange and the mixture of linear scalar and vector potentials, we structure the relativistic corrections of order v2/c2to the Cornell potential, including the annihilation potential for the quark and antiquark of the same favors which plays the same role with the one-gluon direct exchange at short distances.

采纳库仑势源于单胶子直接交换，而线性禁闭源于标量和矢量的混合，同时考虑在短程区域与单胶子直接交换起同样作用的同味正反夸克的湮灭，构造了静态夸克-反夸克势到v~2／c~2级次的完全相对论修正，并拟合计算了重介子偶素的能谱，讨论了相对论修正对重介子偶素能级分裂的作用。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。