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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。

After Trash Compactor is power up, lock the control door and the main door, then the compactor is ready

生活垃圾压缩打包机在"加启动"后,锁上控安全门和大门,打包机处于准备状

After dozens of years of continuous development and growth,ROBAM Group has developed into an independent and creative company which focuses on the production of kitchen electrical appliances including range hoods,gas stoves,disinfection cabinets,electric pressure cookers,induction cookers,complete kitchen cabinet and etc.

经过数十载的不断发展与壮大,老板家已成为一个以生产吸油烟机、燃气灶、消毒柜、压力煲、磁炉、整体橱柜等厨产品为主的自主创新型企业。

In thethesis we present a method to calculate the dielectric function of therandom composite and give the expression of the effective dielectricfunction.

在本文中,我们将计算周期性结构介函数的表达式推广到无规系统,给出了无规系统有效介函数的级数表达式,并得到了稀浓度时的解析表达式。

The (0,1) placement variables are treated as continuous variables and then rounded after the optimization. The computational formula of the sensitivities of the freevibration frequency with respect to placement variables is derived.

在压材料组成的桁架结构的自由振动频率优化设计中,提出了压杆件配置的(0,1)设计变量并将其连续化处理,推导了压桁架自振频率对该设计变量的灵敏度计算方法。

After analyzing features of traditional incremental conductance algorithm, the improved incremental conductance algorithm was presented.

分析了传统的导增量法的特点,提出了改进的导增量法。

It proves convenient to describe the ability to conduct current in terms of conductance

导。 根据导来描述导的能力,证明是方便的。

Meanwhile,simulation and pot cultureexperiments were conducted on crops fertilized by them and tests were carried outon the release and transport of nutrients in them and the nutrient uptake andutilization of crops by SEM,Conductometer and EUF(electron-ultrafiltration).

本研究采用导仪、扫描镜、超滤等方法,室内模拟试验和盆栽作物应用试验对我们研制的聚合物包膜尿素和包膜磷铵的膜结构特征、养分释放运移机理和作物吸收利用等方面进行了较系统的研究。

A precision device based on the conductance millivolt input notation method, connecting an electrical conductometer to a recorder, and with a deviation of ±5% is established for the determination of the rate of dissolution of water-soluble polymer ic electrolyte.

采用导仪连接记录仪,建立了一种测定水溶性高分子解质溶解速度的精确方法——导毫伏输出记谱法,测定偏差±5%。

Guizhou Conger power electric devices for phosphorus in the long-term system design and construction, according to from the practice - theory - and then to practice the scientific development of reason, form their own use of patents, integrated technology, creative and practical line of unique technical process, and in the concrete business in line with our technology on the four provinces of Yunnan, Guizhou, Sichuan, Hubei and phosphorus chemical enterprise device design and construction, the tons of phosphorus to reduce the power consumption is about more than 2000 kWh of energy savings.

贵州康格力在长期针对黄磷炉装置系统的设计和施工中,根据从实践-理论-再到实践的科学发展道理,形成了自身利用专利、整合技术、创新实用的独特的技术工艺路线,并在具体的企业中使用我们的工艺技术路线对云贵川鄂四省的磷化工企业的装置进行了设计和施工,达到了吨磷降低耗约2000多度的节能效果。

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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。

If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.

如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。