00 a . m . in the arabian desert , the world ' s fifth richest man sits alone . a rare moment of tranquility . who is this man ? what is he thinking ? why is he here 清晨早晨两点的阿拉伯沙漠,全球第5巨富独自坐在那儿。这刻平静对他来说并不常有。这人是谁?他在想什么?他为何在这儿?
The aim of this work is to discuss some erdos " problems of finite planar sets . a finite planar set is k - isosceles for k 3 , if every k - point subset of the set contains a point equidistant from other two 称一平面点集f是k -等腰集( k 3 ) ,如果f的任一k -元子集中均含有三个点,使得其中一点到另外两点的距离相等。
Because each path takes the form of a chord ? a straight line connecting two points at the edge of the sun ' s disk ? astronomers could measure the angular shift between the paths by comparing the durations of the transits 因为每条路径都是一条弦(连接太阳盘面边缘两点的直线) ,天文学家便能比较凌日持续的时间,而计算路径间的角差。
When the sounds of whistle for urgent gathering from jiang jun was heart at 2 : 00 , i was in dream , jiang jiu announced that night traversing started , the total time for picking up tents and traversing was achievement for race 当将军凌晨两点的紧急结合的哨声响起的时,我正在美梦中挣扎,将军宣布夜间穿越开始,现在就开始计时,每个队收拾帐篷的时间和穿越的时间之和就是比赛的成绩。
One young woman called and said that she never watches television at night , but just reads books instead . however , she chose to watch a cable television channel at 2 a . m . one night for some reason 一位年轻的女性打电话来,说她在晚上从来不看电视,只有看看书,然而因为某种原因,有一天晚上她看了清晨两点的电视那天晚上,师父的演讲是第一次在那个频道播出,她说她感到和师父间有沟通。
In this paper , a storage strategy and a query process method are presented , with the methods to represent and convert the query result . the storage model , which is composed of the reachability code of the two spanning trees and an efficient reachability index , can be used to determine the reachable relation between any two nodes in nearly constant time 本文提出了图模型xml数据上的一种存储策略,该存储模型由基于正向,反向两棵生成树的可达编码和一种高效的可达索引组成,利用它可以在很短的时间内判断图中任两点的可达关系。
Aimed to the two deficiencies of three - ring gear transmission , the dissertation will analyze these two aspects . the first , according to the finite element model of gear pair of three - ring gear reducer , the dissertation is aimed to analyze the multi - tooth meshing effect of three - ring gear reducer using finite element method , and the number of teeth contacted simultaneously , their load distribution characteristics and the von mises stress change are gained 针对三环减速器以上两点的不足之处,本文将对以下两方面进行分析:首先,本文以三环减速器齿轮副有限元模型为研究对象,利用有限单元法对三环减速器多齿啮合效应进行分析,得到三环减速器传动时的实际接触齿数、啮合齿载荷分配以及vonmises应力变化规律。
He could now leave fort kearney station , and pursue his journey homeward in peace . towards two o clock in the afternoon , while it was snowing hard , long whistles were heard approaching from the east . a great shadow , preceded by a wild light , slowly advanced , appearing still larger through the mist , which gave it a fantastic aspect 事情是这样的:在下午快两点的时候,天上正飘着鹅毛大雪,忽然从东面传来几声汽笛的长鸣,接着一个黑呼呼的庞然大物,头上射出强烈的光芒,慢吞吞地向这边走过来了,它在浓雾里越发显得庞大,并且还带有一种神怪的气氛。
Abstract : in the 1d random traffic flow model , the relationbe tween the correlation functions and the creation , disappearance , brake probabiliti es ofthe vehicles is presented , according to the statistical mechanical approach to thecorrelation functions . and then comes out the results cohering with the c omputersimulation 文摘:依据概率论的定义,通过对关联函数的解耦,给出两点的关联函数与转入、转出及刹车概率之间的关系,并对其结果进行了讨论,计算机数值模拟结果与理论结果一致
The first section of this paper gives a brief introduction about the basic concepts , terminology and symboles which are used in this paper . in section 2 , we give an accurate discussion about the structure of a kind of graphs in [ 6 ] and get the extremal graph . in the third section , we introduce a new concept - - - - implicit weighted degree and using it we give a condition on the existence of heavy cycles in weighted graphs 在本文的第一部分中,我们简要介绍了论文中所涉及的一些概念,术语和符号;在第二部分中,我们对中图的结构进行了精确的讨论,给出了一个极图;在第三部分,我们定义了一个新参数?隐赋权度,给出了赋权图中重圈存在的隐赋权度条件;最后,在第四部分,我们给出了赋权图中过两点的重圈存在性的dirac型条件。