未知

The adaptive technique can overcome the unknown upper bound of uncertainty so that the reaching condition can be satisfied.

自适应技术的应用克服了不确定的未知上界，使可达条件能被满足。

To five-parameter camera model, we discuss how to compute the intrinsic parameters, pose and motion parameters of the camera from 5 control points and their image points when the camera intrinsic parameters are unknown and variable during the motion.

针对五参数摄像机模型，讨论了摄像机在运动过程中其内参数是未知的且可以发生变化时，如何通过5个控制点以及它们的图像点，来求解所对应的内参数、方位以及运动参数。

So, in this paper, a circular cavity witha large radius is used to replace the straight boundary of thehalf space, then the half space problem can be changed tothe scattering problem of two circular cavities to the steadyincident P-wave . Having the aid of the mature cylinderfunction theory, the general solutions of the wave functionscan be given, and an infinite linear algebraic equations ofthe unknown coefficients in the wave functions can be gottenwith the boundary conditions and the Fourier complex seriesexpansion technology, the infinite linear algebraic equationscan be approximately solved by the finite trunction withsatisfying some definite precision, at the basis of thissolution of the equation, the variations and the lay-outs ofthe DSCF at the circular cavity boundary vs. the differentincident angles, the different embedded depths of thecircular cavity as well as the different dimensionless wavenumber of the incident P-wave.

为此，本文采用一个半径很大的圆孔来代替半空间的直边界，将该半空间问题转化为一无限大空间中两个圆孔对稳态P波的共同散射问题，借助于成熟的柱函数理论，通过写出问题波函数的一般形式解，利用问题的边界条件，并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的一无穷线性代数方程组，在满足一定计算精度的前提下，通过有限项截断进行近似求解，进而讨论了圆孔边界处的动应力集中系数随不同入射角、不同的圆孔掩埋深度、入射波的不同无量纲波数以及介质的泊松比变化和分布情况。

In order to improve the robustness of time delay filter, vector diagram and zero placement method are applied to design robust time delay filter.

并当系统的模型参数未知时，提出了自适应时滞滤波器的方法，通过在线辨识系统的模型参数，来实时校正滤波器的脉冲幅值和时间，以适应系统参数不确定的情况。

The method is firstly applied to solve the linear convection-dominated diffusion problems and the optimal L2-error estimates of the unknown function c and the vector flux p are gained.

此方法首先被用于求解线性对流扩散问题，得到了关于未知函数c及伴随函数p的最优L~2误差估计。

It is said that the true nature of being is veiled.

很多人都说人生的真谛是个未知的概念。

It is said that the true nature of the being is veiled.

很多人都说人生的真谛是个未知的概念。

It is said that t he true nature of being is veiled.

很多人都说人生的真谛是个未知的概念。

It is said that the ture nature of being is veiled.

很多人说人生的真谛是个未知的概念。

It is say those the true nature of be is veiled.

很多人都说一生的真谛是个未知的概念。

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。