使群集

Based on the analyses of the current problems and the weakness of traditional solutions in the campus mail system,a new solution based on multiplexor was discussed which can achieve horizontal scalability and provide a single domain name that can be used to connect indirectly to multiple mail stores,so the whole mail service system can become a single host to mail users.

在分析目前高校邮件系统面临问题及传统解决方案存在不足的基础上，讨论了实现横向可伸缩性，实现可用于连接到多个邮件服务器的单一域名，以使整个邮件服务器阵列作为一个单一主机呈现给邮件用户的多路复用器技术，并给出了中国农业大学基于此技术的群集邮件系统的应用实践。

Nymph and female imago are teeming in midrib of back of the floral limb such as orange, leaf two side are mixed it is on fructification kill, suck juice, make Xie Huangzhi withered, vimineous atrophy, cerebral cortex is coarse.

若虫和雌成虫群集在柑橘等植物的枝干。叶背中脉两侧和果实上为害，吸食汁液，使叶黄枝枯，枝条萎缩，皮层粗糙。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。