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Exploiting this property, we derived several necessary constraints on the number of symmetric/antisymmetric filters, which help to design multiwavelets with the desired symmetric property.

为此首先系统的调查了对应于两种类型对称性的m带紧支撑正交多小波的对称性质，即用滤波器和多相矩阵刻画了多小波系统的对称特征，并由此得到正交多小波系统中对称反对称元数目的约束条件，这对于后来对称多小波的设计是非常重要。

Combining the definition of CWT and the derivative property of convolution, we constructed a general method to calculate the approximate derivative of signal through CWT by using the first and second derivative of Gaussian function, Haar, and the first derivative of three-order-Spline function as wavelets. As compared with the other approaches of calculating derivative, which include the numerical differentiation, polynomial filters, Fourier transform, and the recently proposed DWT method, fast calculation and simple mathematical operation were remarkable advantages of CWT method. For the signal corrupted by severe noise (Signal-toNoise Ratio=5), the satisfactory results could also obtained via CWT method through appropriately adiusting the dilations.

在此基础上，(1)结合连续小波变换的特点和卷积的微分性质，提出了使用Gaussian函数的一阶和二阶导数，Haar和三次样条函数的一阶导数作为小波函数的连续小波变换计算信号近似导数的一般性方法，与其他导数计算方法(包括数字微分法，多项式滤波法，Fourier变换法和离散小波变换法)相比，本法简单便捷，计算速度快，对于噪声含量较高的信号(S/N为5)，只要适当调节尺度即可获得比较满意的结果。

Generally,to solve the practical problem of bark beetle quarantine in imported timber and wooden packing material,we carried out the research of semiochemicals-trap application,morphological and molecular identification of bark beetle in this project,and the results would contribute to improving the whole level of bark beetle quarantine.

本研究从解决进境木材及木质包装材料携带小蠹虫检疫的实际问题出发，进行了信息化合物引诱技术在小蠹虫检疫中的应用，以及检疫性小蠹科昆虫形态与分子鉴定等一系列研究，为小蠹虫整体检疫水平的提高奠定了理论与实践基础。

Case hair that day, small Zhong Ceng tries for many times to invite small roc go out beguilement, fall without the circumstance of fruit, browbeat in order to commit suicide namely small roc, small roc but the request that was forced to promise him.

案发当天，小钟曾试图多次邀请小鹏外出散心，无果的情况下，即以自杀来威胁小鹏，小鹏无奈只好答应了他的请求。

Experiment results show that binary tree SPIHT suits to true bidimensional wavelet decomposition and it is testified that in true bidimensional wavelet decomposition, the compression effect is comparable between image decomposed by wavelet FB with low order VMs but good interpolating characteristic and that with higher order VMs.

实验证实了二叉树的编码更适合纯二维小波分解，同时也证实了在纯二维小波分解中内插性能好的低阶消失矩的小波滤波器能够产生与高阶消失矩的小波滤波器相同或更好的压缩效果。

By use of bipartition, the entropy of each wavelet block approximates to the target bit rate of one. 5. An efficient algorithm is presented for constructing quantization tables of wavelet blocks with optimal bit allocations for a given image. The algorithm uses wavelet coefficient distribution statistics in a novel way, and pays attention to the traits of HVS.

该算法首先根据每个小波块所含能量的多少和到每个小波块实际编码所用的比特数，给其分配不同的码率；然后根据二分法，通过调整各小波块的量化因子使得各小波块的熵逼近它的目标比特率。

If that were true, thought Third Fairy, she 'd never even be able to joke with Young Blacky again.

开罢斗争会以后，风言风语都说小二黑要跟小芹自由结婚，她想要真是那样的话，以后想跟小二黑说句笑话都不能了，那是多么可惜的事，因此托东家求西家要给小芹找婆家。

He explained about the freedom of choice provisions in the Marriage law, and said that s engagement to Young Blacky was entirely legal. He advised Third Fairy to return the money and gifts to Brigadier Wu and let Qin marry Young Blacky.

又给她讲了一会婚姻自主的法令，说小芹跟小二黑订婚完全合法，还吩咐她把吴家送来的钱和东西原封退了，让小芹跟小二黑结婚。

He explained about the freedom of choice provisions in the Marriage law, and said thatQin's engagement to Young Blacky was entirely legal. He advised Third Fairy to return the money and gifts to Brigadier Wu and let Qin marry Young Blacky.

给她讲了一会婚姻自主的法令，说小芹跟小二黑订婚完全合法，还吩咐她把吴家送来的钱和东西原封退了，让小芹跟小二黑结婚。

Inflorescence a terminal open panicle with elongate central axis; branches capillary, subdivided, each branchlet tipped by a short raceme; racemes with 1–5(–8) spikelet pairs, often reduced to triads of 1 sessile and 2 pedicelled spikelets, basal homogamous spikelet pairs absent; rachis internodes and pedicels slender, with a median translucent stripe between thickened margins.

花序一顶生开阔的的圆锥花序具拉长主轴线；分枝发状，再分，通过一短总状花序的每小枝端部；总状花序具1-5(-8)小穗对，通常退化至三人小团伙的1无梗和小穗2 pedicelled，基部同性花对无；节间的轴和花梗纤细，有在加厚的边之间的一个中间的半透明的条纹。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。