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Finally, the erosion and dilation operators are used to smooth the edges of the segmented regions.

最后，利用形态学的有关算法对分割区域的边缘进行平滑。

The optical dilatometer allows operators to measure absolute thermal expansion or sintering behavior in a single test.

光学膨胀剂使操作者能够在单个试验中测量绝对热膨胀或烧结行为。

It is not so for nonlinear operators, such as the directional derivative along the gradient.

它不是所以为例如沿着坡度方向的派生物非线性的操作员。

A algorithm of dim small targets detection in infrared image is proposed. Image is processed by using median filter and unsharp mask. The infrared image intensity surface is fitted by Haralickd discrete orthogonal polynomial basis function,and then the maximum points are detected on the fitted intensity surface by convolving the image with the second order directional derivative operators.

提出一种红外弱小多目标图像检测方法，图像先经过中值滤波、高提升滤波增强处理，再用基于Haralick离散正交多项式曲面拟合图像，拟合曲面的极大值点即目标点，可以利用导出的二阶方向导数算子与图像进行卷积得到。

In the differentiation step,directional derivatives in only two directions are necessary,when DD operators are used.

在分化阶段，只有两种情况需要用到方向导数。一种是使用DD设备是。

The first part gives the general theory of modular groups, modular forms and Hecke operators, with emphasis on read.freeduan.com the Hecke-Weil theory of the relation between modular forms and Dirichlet series.

第一个部分给标准化的组的一般的理论，标准化的形式和Hecke 操作者，重点在read.freeduan.com在标准化的形式和Dirichlet 系列之间的关系的Hecke-韦尔理论。

This thesis is devoted to the study of composition operators on some spaces of analytic functions defined on the unit disk D in the complex plane. They involve Hardy space, weighted Bergman spaces, Dirichlet space, Nevanlinna-type classes, etc.

本文系统地研究了定义在复平面C中的单位圆盘D上的几类解析函数空间上的复合算子，涉及的空间包括Hardy空间、加权Bergman空间、Dirichlet空间、Nevanlinna类等等。

Operators to each other discount to the broker's commission, it should be so recorded.

经营者给对方折扣，给中间人佣金的，必须如实入帐。

By omitting certain particular conditions inconsistent with actualities, we can also obtain a similar result in the position distribution of discrete eigenvalues and their limit points for this kind of operators.

在省略某些不符合实际的特殊条件的情况下，对这类算子离散本征值及其聚点的位置分布，同样获得了一个类似的结果。

In Chapter 4,we deal with the problem of the discrete spectrum for the singulardifferential operators with left definite type.

第四章 讨论左定型奇异微分算子谱的离散性问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。