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There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.

射箭的肢体动作幅度小，简单的手段和分析不能满足其需要，笔者结合各种运动生物力学仪器优点及射箭项目的特性，选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试，运用相关软件及数理统计方法，对运动员的射箭动作技术，从射箭动作的姿态构架、肢体运动特点，身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析，结论及建议如下：结论：第一，姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标；第二，各动作阶段所用时间的长短不能作为技术评价指标，但举、开弓的时间相对较固定，开举弓时间比与中国国家队射箭成绩正弱相关达到显著性；第三，闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性，可作为身体素质、选材及成绩预测的参考依据；实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异；第四，射箭运动员实射时身体在前后方向上的稳定性较差，这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关；第五，运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够，背部肌肉用力特征不明显，撒放技术合理性不高。

The peak of the bulge accorded with the vertical line through the posterior convexity of superior articular surface of atlas. The superimpose rate of the vertical line with the M line were 48% to left and 65% to right. The surplus existed in l～2mm to lateral of M line. The exit point of screw was the median point of vertical line on the anterior cortex of lateral mass. The superimpose rate of BB line the line linked with the

寰椎后结节中点及上关节突后凸尖下的骨质弧形隆起的顶点可作为寰椎椎弓根螺钉进钉点的准确标志，上关节突后凸尖及横突尖可作为寰椎椎弓根进钉点的大体标志；沿寰椎椎弓根轴线进钉较为安全，内倾17°，仰角变异大，出钉参照前结节顶点；椎动脉沟中外的厚度及进钉点处寰椎后弓的高度是寰椎椎弓根螺钉固定的主要限制性因素。

The finite element analysis of the pantograph is important for improving the design and advancing the capability of the products.

受电弓整体结构分析对于改进受电弓的设计，提高受电弓的性能，具有重要意义。

Holding the bow is like a teeterboard supported by thumb as the pivot and the cooperated forcing of forefinger and little finger produces a moment M. The "P-x-M Line Method" shows when playing a down bow, M increases with x and gradually changes its direction and this process is determined by P, the gravity and barycenter of bow. The "P-x-F Plane Method" shows that the most force-saving bowing path should locate in the lower part of this plane. The analyses of "Helmholtz Motion" and "Schelleng Diagram" indicate P and its range is in direct ratio with volume, velocity of bow, the approaching degree of the bow to the bridge and has some relationship with the quality of string and bow.

国内近期出现了用物理模型来研究小提琴运弓问题的尝试本文第一部分首先指出握弓类似于一个以***(F3)为支点的跷跷板，主要以食指(F1)和小指(F2)的施力配合，产生握弓力矩M；随后用"P-x-M直线法"证实：演奏下弓是M随的***而逐渐增大并转换方向的***，此***取决于P、弓的重力和重心；并首创"P-x-F平面法"，在x，F1，F2空间中证实：省力的运弓路径应在该平面中处于较低的位置第二部分通过分析"赫尔姆霍茨运动"和"Schelleng图表"指出：P及其变化范围和音量、弓速、弓与琴码的接近程度成正比，并与琴弦和弓自身的性质有关

In this paper the authors make use of the linear relation between the rising angle and the rising height of the pantagraph and have got a terse equivalent mass formula of the TSG 3 pantagraph.

利用升弓角与升弓高之间的线性关系推导出了较为简洁的TSG3受电弓的归算质量计算公式，经过与实测结果对比，理论值与实测值非常吻合。

As the only bow manufacturer in the world to offer a complete line of bowsfor every level of archers, we produce recurve bows, compound bows, field archery, hunting bows, and a full line of metal and plastic archery accessories.

作为世界上惟一一家为高水平的射手提供竞赛用弓的企业，我们生产反曲弓、复合弓、田野弓、狩猎弓和全系列的金属和塑料箭术配件。

The bow will correspond to the traditional form of a long bow which means that when strung the string may not touch any other part of the bow but the string nocks.

长弓应符合传统的长弓形式，上了弓弦之后不能接触弓的其它部位，而仅能接触弦扣部份。

Next, in ADAMS, friction coefficient database is set up, and dialog box for defining joint friction is extended based on analyzing joint friction in mechanical system, and the method of parametric analysis is discussed for analyzing manufacture errors influence on mechanism performance.

然后，建立了受电弓虚拟样机模型，基于该模型主要研究了运动副摩擦引起的升弓轨迹和升弓扭矩的运行误差；在ADAMS环境下建立受电弓的三维参数化模型，讨论了制造误差对受电弓升弓轨迹的影响。

This paper used foot arch index to investigate the growth of the foot arch of infants,children and juveniles.

本文采用较能客观反映真实足弓的指标——足弓指数，对幼儿、儿童和少年足弓发育情况进行研究。

After the analysis of the arch width change, the clinical effects of arch expansion with straight Ni-Ti wire were evaluated.

选择直钛镍丝扩弓的32例非拔牙矫治患者，分别测量扩弓前后牙弓宽度变化及牙槽座点位置变化。

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。