组集的

At last,we use these feature regions to construct affine invariant s,based on affine geometry invariant property.

利用仿射区域划分获取一组扩展质心集合作为图像特征点集；求解特征点集的凸包，根据扩展质心的性质将凸包顶点均匀组合成若干特征区域；利用仿射几何性质构造了有效的仿射不变量。

Using the existing conventional computing technique in general finite element method, the obtained result is incorrect.

这一方法不仅可以解决常规有限元的刚度矩阵并行组集的问题，也可实现常规有限元数据到无网格单元法的数据格式的转换与融合。

By applying Frenchet derivative analysis, the iteration formula is derived to solve the constrained functional minimization problem, essentially the formula is a level set equation, in which the motion velocity of the level set is the shape sensitivity of material interfaces.

这样就把材料界面表示为一组高维函数的水平集，使拓扑优化问题转化为材料界面追踪问题，这时材料界面的形状敏度就(来源：9aABb5C论文网www.abclunwen.com)是水平集的运动速度。

With given circumradius R and inradius r,two fundamental inequalities related to the lower bound of the area A and perimeter p of a convex set K are obtained.

在给定平面凸集K的外径R和内径r的条件下，得到了关于凸集的面积A和周长p的下界的一组不等式，并且证明了当凸集K为双帽体时不等式取得等号。

Then we used spot 3 to test the performance of the network, at the same time, two other networks were built for comparation with the BBP network we have set.

结果表明，网络训练集的相关性达0.8867，平均绝对误差和平均绝对方差分别为15.07和377.4，确证集两组数据的预测精度为3.5%和16.5%。

By means of core observation and log analysis of reservoir,it is recognized that widely distributed Tazhong uplift is formed from the late of Middle Ordovician to the early of Late Ordovician(from Llandeilo to Early Caradoc).

区域对比分析表明，推测巴楚凸起区特别是玛扎塔格断裂带与吐木休克断裂带之间的地区也广泛分布了该鹰山组中上部古潜山岩溶储集层，在塔北隆起区与之相当的是发育于中下奥陶统一间房组上部的古潜山岩溶储集层。

By means of core observation and log analysis of reservoir, it is recognized that widely distributed Tazhong uplift is formed from the late of Middle Ordovician to the early of Late Ordovician (from Llandeilo in Early Caradoc). The buried hill paleo-karst reservoir developed in the carbonate rocks of the mid-upper section of Yingshan formation of Lower Ordovician and covered by Lianglitag formation of Upper Ordovician is dominated by lithology of granular limestone, micritic limestone and algal elastic limestone interlayered with dolomite of open to semi-restricted platform fades.

通过岩心观察、测井储集层分析等手段，识别出塔中凸起区广泛分布形成于中奥陶世晚期－晚奥陶世早期（兰代洛世－卡拉道克世早期）、发育于下奥陶统鹰山组中上部碳酸盐岩中且被上奥陶统良里塔格组覆盖的古潜山岩溶储集层，其原岩主要为开阔－半局限台地相颗粒灰岩、泥晶灰岩、藻灰岩夹白云岩。

Secondly, most of typical scheme for MANET multicast reking are based inbalanceable key tree, the most import problem of multicast reking is providingforward security when member leaves and backward security when member join, then,how to improve efficient of multicast reking, decrease the cost of reking, is the coreproblem of balanceable key tree for MANET multicast reking.

对于大规模自组织网络，采用完全集中式或完全分布式的组****管理的方式容易形成系统单一失效点、产生网络分割、不同步等问题，实际应用中宜采用结合集中式和分布式优点的分散式的组****管理框架，子组中心管理和用户子组管理是框架的两个管理层次，对子组中心管理关注的是组****分发的安全性和效率，如何实现分布式身份可验证的组****分发是自组织网络组****管理的关键问题。

The analysis from regional correlation indicates that the buried hill paleo-karst reservoir of also occurs in Bachu swell area, especially in area between Mazhatag fault and Tumuxiuke fault of the mid-upper seclion of Yingshan formation, compared with the paleo-karst reservoir developed in the upper section of Yijianfang formation of Middle-Lower Ordovician in throughout the whole Tarim basin in late of Middle Ordovician to early of Late Ordovician.

区域对比分析表明，推测巴楚凸起区特别是玛扎塔格断裂带与吐木休克断裂带之间的地区也广泛分布了该鹰山组中上部古潜山岩溶储集层，在塔北隆起区与之相当的是发育于中下奥陶统一间房组上部的古潜山岩溶储集层。

Obviously, the inference ability of this group of formulas promoting thisformula is stronger,the distance from it to the formula becomes nearer.

特别是若该公式本身就是这组公式集的推论，则它到其推论之集的距离为零。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。