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The new antenna has the advantages of sim ple structure, easy feeding and a wide frequency range, and circular polarized wave. The characteristics are m uch better than a bifilarbackfire helicalantenna, a shortbackfire antenna and a backfire...

它具有结构简单、馈电方便、遮挡小、频带宽、增益高且易于产生圆极化波等优点，性能远优于带相同接地板的螺旋天线、普通短背射天线以及单线背射螺旋作馈源的短背射天线。

This thesis circumambience a hot topic in "single slice machine control the GSM mold piece receive and dispatch a message", elaborated a homologous GSM wireless terminal of design project, development method and development process, made use of 8 bit AT89S51s of Atmel company a single slice machine and Siemens company most the new generation GSM mold piece TC35i to carry out a GSM Mode which has a message to receive and dispatch function in the design is two prototypes.

本论文围绕"单片机控制GSM模块收发短信"这一热点课题，阐述了相应的GSM无线终端的设计方案、开发方法和开发过程，在设计中利用Atmel公司的8位AT89S51单片机和Siemens公司的最新一代GSM模块TC35i实现了一款具有短信收发功能的GSM Mode二原型。

One is research on choice and optimization of clapboard material s of split columns, the other is research on technique of construction of split columns.

从两个方面对改善短柱特别是超短柱抗震性能的分体柱技术进行了进一步的试验研究，一是分体柱的隔板材料选择和优化的试验研究，二是分体柱施工工艺的试验研究。

Open flowers with corolla longer than calyx, tube slender, 2-lipped, lower lip 3-lobed, upper lip erect and 2-lobed; stamens exserted; style longer than stamens. Cleistogamous flowers with corolla shorter than calyx; stamens and style shorter than corolla.

开阔的花具花冠长于花萼，纤细，二唇形的筒部，3浅裂的下唇，和2裂的上唇直立；雄蕊外露；花柱长于雄蕊有花冠短于花萼的Cleistogamous的花；雄蕊和花柱短于花冠。

All characters that have been used to delimit more narrowly defined species in other treatments of Chinese Clethra exhibit a strongly continuous pattern of variation from west to east across the range of the species in China (i.e., leaf size and shape, the number of secondary veins on each side of the midvein, anther size and shape); they also exhibit geographically correlated or seemingly random patterns, but without correlated gaps in character states among any two or more characters (i.e., style pubescence, corolla abaxial surface, stamen exsertion).

用来界定更狭窄定义的中国的Clethra的其它种的全部特征，从中国种的分布区的西部到东部，展示了一种强烈的连续变异的样式（如，叶大小和形状，中脉每边次脉的数目，花药的大小和形状）；他们还展示出地理分布的相关或好像随机的样式，但是在任何2或更多特征状态间没有相关的特征间隔（如，花柱被短柔毛，花冠背面、雄蕊伸出）。叶大小与形状，在中脉，花药大小与形状的每边次脉的数量；也的他们展览好象地理上有相互关联或随机模式，但是没有有相互关联特征差距在任何2 特征或更多中说明即，花柱短柔毛，花冠背面，雄蕊exsertion。

Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.

研究结果表明：基于串励直流电动机(来源：ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场，其各挡下的驱动力特性是一组下凹的曲线，低速恒转矩，高速恒功率；同一行驶速度下所对应高挡驱动力大于低挡驱动力，这是由电机的调速特性决定的；电动拖拉机各个挡位下具有较广的稳定作业速度范围，但是各个挡位之间速度重合的范围较多，说明所用变速箱变速比与电动机匹配不合理；电动拖拉机最大爬坡度达到30%以上，并且各挡爬坡度变化范围较广，作业过程中不需要频繁换挡；影响电动拖拉机连续作业时间的因素较多，其中作业行驶速度和作业负荷影响最为明显，作业负荷越大，连续作业时间就越短，作业速度越快，连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。

This study investigated the ant groups algorithm to solve the problem of traveling salesman. The target of the article is that on the map G detect the shortest length of the Hamilton Circle, namely one pair of C n cities and only visit one of the shortest closed curve.

论文主要是研究蚁群算法来解决旅游商问题，其目标是从无向图G中寻出长度最短的Hamilton 圈，此即一条对C中n个城市访问且只访问一次的最短封闭曲线。

Much olefin of conjugate of discovery short cable length (number of conjugate double key is less than 6) to lengthen and increase quickly of time as degradation, grow catenary conjugate much olefin at the same time (the growth rate that number of conjugate double key is more than or is equal to 6) is far be less than conjugate of short cable length much olefin.

发现短链共轭多烯烃(共轭双键数小于6)随着降解时间的延长而急剧增加，同时长链共轭多烯烃(共轭双键数大于或等于6)的增长速率远小于短链共轭多烯烃。

The lateral rigidity and torsional rigidity of the wall is enhanced and the pertinence contexture is strengthened by configuring of vertical structure rationally and after the actual analysis and calculation for the specific project.

小高层住宅采用短肢剪力墙结构，可以不露墙柱，减轻重量，减小地震效应等优点；通过具体工程实际分析计算，合理的布置竖向结构，提高其侧向刚度和抗扭刚度，并针对性的构造加强，在7度地震区，小高层住宅采用短肢剪力墙结构，其抗震性能尚可。

Corncrake A common Eurasian bird with a short bill and brownish-yellow plumage, found in grain fields and meadows.

长脚秧鸡：欧亚一种普通短嘴秧鸡，喙短，羽毛棕黄色，常在谷物田和草地里出没

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。