In proc . ieee infocom , 20th annual joint conference of ieee computer and communications societies alaska , apr . 22 - 26 , 2001 , pp . 1380 - 1387 . 2 li x y , wan p j , frieder o . coverage in wireless ad hoc sensor networks 如果点p处于传感结点s的感应区域内，那么结点s在p点上的感应能力表示为，其中表示结点s与点p的距离，和都是常量。
2 . the influence of different axis linear acceleration on coriolis illusion to observe the effect of different axis ( x x y axis ) linear acceleration on coriolis illusion on gl - 2000 a 16c加s们1起的科里奥利错觉形态、持续时间、强度进行了比较，结果发现：同无线加速度作用相比，在x轴向线加速度为0二7gx及y轴向线加速度为0
For example , the expression y could either be interpreted as a cast expression a cast of y to type x or as an additive expression combined with a parenthesized expression , which computes the value x y 例如，表达式( x ) y既可以解释为强制转换表达式（从类型y到类型x的强制转换） ，也可以解释为结合了带括号的表达式的相加表达式（计算xy的值） 。
20 wang s , gao y , chen t y , zhang k l . study of two - layer trust model in service grid based on behavior . computer applications , 2005 , 25 : 1974 - 1977 . 21 qin b , wang s , du x y . materialized view maintenance in peer data management systems 提出一种可扩展的分布式数据结构linknet ，以支持大规模p2p系统的搜索，提出一种高效率的分层的top - k查询方法，另外，在信任管理更新管理节点间知识共享等方面都做了创新的工作。
If you put extraneous code y into your benchmark , you re now measuring the performance of x y , introducing noise into your measurement of x , and worse , the presence of y changes how the jit will optimize x . writing a good microbenchmark means finding that elusive balance between not enough filler and dataflow dependency to prevent the compiler from optimizing away your entire program , and so much filler that what you re trying to measure gets lost in the noise 如果在基准中加入无关的代码y ，那么现在度量的就是x + y的性能，更糟糕的是，由于y的存在，现在jit优化x的方式又发生了变化。如果没有足够的额外填充物和数据流依赖，编译器可能会将整个程序优化至无形，但是如果填充物太多，那么真正需要度量的东西又会迷失在噪音当中，因此要编写一个良好的微基准，就意味着要抓住二者之间微妙的平衡。
We prove that m has property ( p ) if and only if ( 11 ) let m be as in ( 10 ) then m and every weakly closed subspace including m have proverty ( p ) if and only if for any t b ( h } , there exist x , y h . such that ( 12 ) let a be a completely distributive subspace lattice algebra acting on a hilbert space , then the rank one subalgebra of a is dense in a if and only if , the weak closures of the first and the second preannihilators of a in the space of all trace class operators are reflexive 一弱闭算子空间，称州具有性质( p ) ，如果州中秩一算子生成的子空间在期中a一弱稠密.我们证得:川具有性质( p ) ，等价于州: = { t丁扭) : tx任[州上习， z任火} . ( ll )设川如( l0 )所述，则川以及包含川的每个a一弱闭子空间都具有性质( p ) ，当且仅当，对任意t任侧哟，都存在x ， ，任火使得t一x y州
The problem for solving equation f ( x ) = 0 , where f : d c x y is nonlinear operation , is very important in view of theoretics and practice . not only professional numerical researchers devote themselves to it , but also many engineers and mathematicians study it according to their own demands and interest . some are the spokesmen among them , whose work reflects the features of the mathematics in their times 几个世纪以来，许多工程技术人员，还有许多纯粹的数学家，他们都曾从自己的需要或兴趣出发，去对它做了不同角度的研究，在研究这个课题的数学家中，不少还是他们时代的数学的代表人物，他们在这个课题上的工作，也反映了各个时代的数学面貌。
A block design is a triple d = ( x , b , i ) , where x is a finite set ( the point set ) of order v , b is the block set and / is the incidence relation between x and b . for the given block design d , if all the blocks from x , which have the same type of the blocks in b , can be partitioned into some bi , such that each ( x , bi , i ) is a block design with the same parameters and the same type as d , then { ( x , bi , i ) } i is called as large set of d - design of order v . on the other side , let | x | = v , | y | = v + 1 , and x y , if all the blocks of the same type from y can be partitioned into some bx , such that each ( y { x } , bx , i } is a block design of order v for any element x y with the same parameters and the same type as d , then { ( y { x } , bx , i ) } x is called an overlarge set of d - design of order v . in this thesis , we discuss the existence problem about some types of large sets and overlarge sets 一个区组设计是由两个有限集合x ， b及它们之间的关联关系i组成的，记为d = ( x ， b ， i ) ，其中x为v元集， b为区组集，对于指定的设计d ，若x上与d相应的全部构形可分拆为若干个b _ i ，使得每个( x ， b _ i ， i )皆为一个与d同参数同类型设计，则称这些b _ i构成一个v阶d -设计的大集。若v元集x是v + 1元集y的一个子集，而y上与d相应的全部指定构形可分拆为若干个b _ x ，使得每个b _ x恰是y { x }上的一个与d同参数同类型的设计(其中x y ) ，则称这些b _ x构成一个v阶d -设计的超大集。本文中讨论了一些区组设计的大集及超大集。
The next move around the keyboard , x y key key accelerated the slowdown ; get off the blank game description : control of the game in your guest parking and the location of parking say , in the fastest time within a car parked in the corresponding position , and get off , and the guests go out to the car in the corresponding position to use the car ran the fastest rate guests around , the task is completed 键盘上下左右移动， x键加速z键减速空格下车游戏简介：控制游戏中的你在客人停车并说出停车位置的时候，在最快的时间内把车子停泊在相应的位置上，并下车，并且在客人出门要车时在相应位置上把车子以最快的速度驶至客人身边，任务就完成了！
Introduction : the next move around the keyboard , x y key key accelerated the slowdown ; get off the blank game description : control of the game in your guest parking and the location of parking say , in the fastest time within a car parked in the corresponding position , and get off , and the guests go out to the car in the corresponding position to use the car ran the fastest rate guests around , the task is completed 攻略：键盘上下左右移动， x键加速z键减速空格下车游戏简介：控制游戏中的你在客人停车并说出停车位置的时候，在最快的时间内把车子停泊在相应的位置上，并下车，并且在客人出门要车时在相应位置上把车子以最快的速度驶至客人身边，任务就完成了！
