查询词典 asymptotic direction

This paper takes advantage of interval algebra and rectangle algebra theories. and brings forward a new reasoning method based on combination of the MBR model's cardinal direction relation and rectangle algebra relation; And provides the composing method based on the direction relation matrix by using the direction relation matrix to denote the direction relations between the objects'MBRs.

本文以物体的MBR为模型，利用区间代数及矩形代数理论，提出了一种基于MBR的主方向关系与矩形代数关系相结合的推理方法；同时利用方向关系矩阵表示物体MBR之间的方向关系，得到了基于方向关系矩阵的组合推理方法。

The invention relates to a nut (10) comprising an outer body (16) with an axial passage (22), an inner body which can be movably placed in the passage along an axial direction and which is divided along said axial direction into at least two jaws (18, 20), each jaw bearing an inner thread segment (24) on its radial inner surface, first guiding means (26) located on the outer body, as well as second guiding means (30) located on the jaws and co-operating with the first guiding means so that the jaws are radially displaced towards the exterior when the outer body is displaced in the unscrewing direction relatively to the inner body et radially displaced towards the inside when the outer body is displaced in the screwing direction relatively to the inner body.

本发明涉及一种螺母(10)，它包括：一个带轴向通孔(22)的外体(16)；一个内体，位于通孔(22)中，可沿轴向移动，并且沿所述的轴向方向至少分成两个滑块(18、20)，它们各自在其径向的内表面上具有内螺纹部分(24)。在外体上有第一导向装置(26)，同样滑块上有第二导向装置(30)，第二导向装置与第一导向装置共同起作用，所以，当外体相对于内体沿旋松方向作相对滑移时，滑块径向地向外滑移，并且，如果外体相对于内体沿拧紧的方向滑移，则滑块径向地向内滑移。

If we right-click on this curve, we will see three commands on the menu:"reverse curve direction","assign attributes", and "delete attributes". Yes, the curve had a direction, which was determined by the its drawn direction, and it determined the direction of object movement in the animation.

接着出现的是一个文件储存选择视窗，在上面建立一个新的文件夹，给个文件名字"FAN.skp"，要注意的是一定得加上。skp的延伸文件名，否则SU Animate会存成没有尾巴的文件名字。

A plurality of lengthwise grooves 6 and a plurality of widthwise grooves 7 are formed on the sole 4, wherein the lengthwise grooves 6 extend in a length direction of the shoe 1 mutually in parallel, which are arranged in a widthwise direction of the shoe 1, and the widthwise grooves 7 extend in the width direction of the shoe 1 mutually in parallel between adjacent lengthwise grooves 6, which are arranged in the length direction.

所述鞋底4形成有：多个纵向沟槽6，它们沿所述鞋子1的纵向相互平行地延伸，并且沿所述鞋子的横向排列，多个横向沟槽7，在每对相邻的纵向沟槽6之间沿横向相互平行地延伸，并且沿纵向排列。

Both the scattering and rheological results indicated that the phenomenon similar to"double cloud point", which has been found along the vorticity direction by previous studies, could be also observed in the velocity direction, which confirms the prediction of the above theory that the polymer blend will exhibit anisotropical complex phase diagram under shear. It's also found that the mixing along vorticity direction was reduced by weak shear but enhanced by strong shear. In addition, the more remarkable the molecular weight differences between components, the more prominent the shift of the apparent phase boundary along vorticity direction.

除了以往研究发现涡流方向存在&双浊点&现象以外在，本文的光散射和流变测试均显示，剪切场下体系在流动方向上也出现了类似&双浊点&的现象，证实了上述理论模型关于剪切场会导致二元高聚物共混体系出现各向异性的复杂表观相图（例如Miscibility Gap现象）的预测；同时发现弱剪切会导致体系涡流方向上的相容性减小，而强剪切则在该方向上增强相容性；另外，两组分分子量的差异越大，表观相界的移动越显著。

From Maxwell's equations, with material constitutive relation of optically active crystal and boundary conditions of electric field on the boundary between isotropic media and crystal, through coordinate transformation, the formula of the direction of refracted wave for arbitrary direction incident monochromic plane wave was derived. Furthermore, based on the unit vector of direction of refracted wave, eigen waves of electric field, electric displacement vectors and direction of energy flow can be easily obtained.

从麦克斯韦方程组出发，结合旋光晶体的物质方程以及单色平面波从各向同性介质入射到晶体界面时电场的连续性边界条件，通过晶体主轴坐标系和界面坐标系的坐标变换，推导了任意入射方向的单色平面波在晶体界面上的折射方向的求解公式，进而利用所得的折射方向求解晶体中折射波的电场本征模、电位移矢量本征模和光线方向。

And the direction query efficiency based on multi-approximate index is compared with that based on taditional external approximation index. 2 The algorithms of nearest neighbor and reverse nearest neighbor about point, line and ploygen based on multi-approximate index are proposed after the virous methods of distance measure are discussed in detail. And the query efficiency of NN and RNN based on multi-approximate index is compared with that based on taditional external approximation index. 3 The basic concept of semi-join and the strategy of distance-direction semi-join are introduced. And the model of distance relationship, direction relationship and the bounding for spatial object are discussed. Then the method is presented about how to implement the query of distance-direction semi-join, and the efficiency of the algorithm based on multi-approximate index is compared with that based on taditional external approximation index.

即：1在方向关系矩阵模型、开域方向模型基础上，讨论了基于多重近似索引下的定性与定量方向检索方法，并通过实验对基于多重近似索引与外部近似索引下的方向检索效率进行了对比分析；2详细讨论了各种距离度量方法，提出了基于多重近似索引下的点、线、面的最邻近查询和反最邻近查询算法，并通过实验对基于多重近似索引与外部近似索引下的最邻近查询和反最邻近查询效率进行比较分析；3介绍了半连接的基本概念，探讨了距离关系、方向关系以及空间对象数量的约束模型，给出了基于多重近似索引下的距离方向半连接实现方法，并通过实验对基于多重近似索引与外部近似索引下的距离方向半连接的效率进行了比较分析。

During the infiltration process of indirect subsurface drip irrigation, the ponded water depth changed from zero to a constant and accelerated the water movement in the vertical direction, which reduced the discrepancy of wetted distance in lateral direction and vertical direction, while the changed water depth had small influence on the wetting front movement in vertical direction to upward and downward. The shape of wetted soil zone was spheroid, and its symmetry axis lied near the bottom of the water conducting device.

间接地下滴灌灌水过程中，从零开始逐渐增大并趋于稳定的积水深度加速了水分在垂直方向的运移，缩小了横向湿润距离和垂向湿润距离之间的差异，但变化的积水深度对湿润锋在垂直方向向上和向下的运移速率影响不大，使湿润体形状表现为扁率不断减小的椭球体，且椭球体对称轴分布在靠近导水装置底部的位置。

The tantalum grains have at least a 40 percent (222) direction orientation ratio and less than a 15 percent (110) direction orientation ratio in an atom transport direction away from the sputter face for increasing sputtering uniformity, the tantalum body being free of (200)-(222) direction banding detectable by Electron Back-Scattering Diffraction and wherein the sputter target has a purity of at least 99.99 percent.

所述钽晶粒在远离溅射面的原子输送方向上具有至少为40％的(222)晶向的取向比率和小于15％的(110)晶向的取向比率，用于增强溅射均匀度，所述钽本体没有可采用电子背散射衍射法而检测到的(200)-(222)晶向条带并且其中所述溅射靶的纯度至少达到99.99％。

The wave velocity ratio vertical to the stratum of the rock samples is usually less than that in parallel direction, and the relative increment of wave velocity ratio between the vertical direction and the parallel direction decreases as the wave velocity ratio in vertical direction gradually increases.

波速比的各向异性特征主要表现为垂直层理方向上的波速比普遍小于平行层理方向，且两方向波速比的相对增量还随着垂直层理方向上的波速比的增大而逐步减小。

At 8.30pm, three kids were still at a private kindergarten in Binh Duong province.

晚上8：30，三个孩子仍然呆在平阳省的一个私立幼儿园里。

I squinted as a bright light surrounded him, and when it was over, he was standing in front of me wearing a tee-shirt and jeans.

当一个明亮的光包围了他，而且当它结束的时候，他站立在我之前穿著一个 T字的时候，我使变斜视眼-衬衫和牛仔裤。