有三边的

This paper research and compare board game has simultaneously two people and three people ,like Chinese checkers, Abalone, and Chinese chess.Generalize little difference from its rules and ways, them increases rules in order to fair. This research attempt to revises and publish the feasible idea an example of Hex. First I simplify the checkerboard to increase the universality, and two opposite sides expand for three opposite to reduce first superiority, and make the checkerboard game fair.Besides, increases a player becomes three player of checkerboard games and increases interest. Also develops the new computer checkerboard game of Hex by the C# Windows programming language, and provides a new playing chess the game platform.

本论文研究及比较同时有双人及三人玩法规则的棋盘游戏─跳棋、大王鲍棋、象棋，归纳发现其规则及玩法差异不大，主要为了公平性加入其他规则；本文将以 Hex棋为例，尝试修改，提出可行的办法，简化棋盘以增加普遍性，两对边扩充为三边，以减少先下者的优势，使棋盘游戏更公平，除双人对弈外，同时也增加下棋人数，成为三人棋盘游戏，增加趣味，并且以C#视窗程式语言开发新Hex棋成为电脑棋盘游戏，提供一个新的对弈的游戏平台。

Refold along the crease, enclosing mixture, and make a double 1/2-inch fold along the 3 open sides.

将有开口的三边向里折两次，每次约1/2英寸。

Volume (A2) Volume (A2) Date: 03/28/2006 Focusing the corner, I did really put some time in shaping freshing angles!

角的大特写，我实在有放心机在弄一个三边齐合的角呀！

Simulation experiments prove that this algorithm can obviously improve the location accuracy compared to trilateration.

仿真表明该算法比基于RSSI的三边测量法定位算法的定位精度有较大提高。

RSSI-based location is a hotspot in nowadays. This paper presents RSSI-based triangle and centroid location algorithm and trilateration algorithm, and analyses the average positioning error produced by this two methods. Simulation experiments prove that triangle and centroid location algorithm can obviously improve the location accuracy compared to trilateration algorithm.

基于RSSI的定位技术是现阶段研究的热点，本文提出了基于RSSI的三角形质心定位算法和三边测量法，并对两种算法所产生的平均定位误差进行仿真分析，仿真结果表明基于RSSI的三角形质心定位算法比基于RSSI的三边测量定位算法的定位精度有较大提高。

Furthermore, they continuously transmit radio signals of low power and ultra high frequency. They are also equipped with atomic clocks. When GPS receivers intend to calculate its GPS position on the earth, they will receive the signals from satellites, calculate transmission time with a pre-stored ephemeri, and then calculate the distances between themselves and at least four GPS satellites with the method of trilateration.

所有的卫星架有原子钟，当GPS接收器要找出自己目前在地球表面上的位置时，会接收各卫星的讯号，并依储存的星历表计算传送时间，再利用三边测量法订出自己与至少四颗GPS卫星之间的精确距离，即可算出所在位置。

node location is one of the key technologies in wireless sensor network.rssi－based location is a hotspot in nowadays.for resolving biggish error in rssi－based location,the paper presents a new method of location,rssi－based triangle and centroid location,using triangle and centroid method to reduce the error of rssi measurement.simulation experiments prove that this algorithm can obviously improve the location accuracy compared to trilateration.

摘 要：节点定位是无线传感器网络中的关键技术之一。基于rssi的定位技术是现阶段研究的热点，为解决rssi测量方法定位误差较大的问题，提出一种将rssi测量方法与三角形质心算法相结合的新型定位算法，该算法用三角形质心算法减小rssi的测量误差。仿真表明该算法比基于rssi的三边测量法定位算法的定位精度有较大提高。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。