电力学的

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。

When the electric arc goes out, the cupreous molten would curdle.

研究了稀土及其不同含量对铜基电触头复合材料的导电性能、力学性能及抗熔焊性能等的影响。

In order to investigate the static mechanic properties of wood-bamboo composite city bus- floor, elastic modulus and strength of component materials——poplar veneer, bamboo shoot and wood-bamboo composite city bus-floor were measured by uniaxial tension, electrometry and three-point bending.

为了考察木／竹复合城市客车底板的静态力学性能，本论文利用单向拉伸法、电测法和三点弯曲试验法对组分材料——杨木单板、竹片以及木／竹复合城市客车底板的弹性模量和强度等进行了综合研究。

Patients indicated on the symptom report card and six-point functional scale the maximum level of vertigo, activity and stress.

运用症状卡和6点功能评分进行眩晕发作和活动状况的主观评分；采用纯音测听、耳蜗电图和双温试验进行听力学和前庭功能评价。

Ans 1 Yes, we can get job visas working permit visas for 4 years only for the following categories, Medical Practitioner, Registered Nurses, Registered Midwives, Pharmacists, Chef, Automotives Electrician, Fitter, Furniture Upholsterer, Motor Mechanic, Hairdressers, Panel Beater, Pastry Cook, Toolmaker, Vichicle Painter, Welder (first Class, Refrigeration and Airconditioning Mechanics, Metal Fabricator, Metal Machinist, General Garden Work.

是答1，我们能有工作签证工作许可证签证适合4 年只适合下列种类，开业医生，领有执照的护士，注册助产士，药剂师，主厨，汽车电机师，剪裁和试样的裁缝，家俱室内装饰商，电动机技工，理发师，小组打击者，糕饼库克，Toolmaker，Vichicle 画家，焊工(一流，冷藏和 Airconditioning 力学，金属Fabricator，金属机械师，一般的花园工作。

It was shown that piezoelectric sensors could be widely and effectively used in researches and practices of geotechnical engineering.

研究表明，压电陶瓷传感器在岩土力学研究和工程实践中有广阔的应用前景。

To improve the dielectric performance of the syntactic foam ,a kind of a low density dielectric materisl with high dielectric comstant.

为改善复合泡沫塑料的介电性能，采用金属氧化物粒子填充改性双马来酰亚胺空芯玻璃微球复合泡沫塑料得到了高介电常数、低介质损耗因数、低密度、力学性能良好的电介质材料。

Statistics based on the multiplicity of vital power elements and on the electrophilic strength of aquo ions of vital power elements respectively.

本文提出了用量子统计力学参数(R_1，R_2)界定中药阴阳性的两种方法：根据生命动力元素重度进行统计和根据生命动力元素含水离子亲电强度进行统计。

The calorical, mechanical and electrical performances of several engineering ceramics are first measured and analyzed for the requirements of subterrene drills shell to high temperature and oxidation resistant.

根据热熔器壳体所需耐高温和抗氧化等要求，测量和分析了若干工程陶瓷材料的热学性能、力学性能和电。

The experimental study of dog sacral nerve distribution and its influence on lower urinary tract function:For further understanding of the distribution of dog sacral nerve in bladder, urinea and penis, and in order to set up theoretical basis for selective sacral nerve rhizotomy in treating spastic bladder after spinal cord injury, 12 dogs were respectively given electrical stimulation to S 1 3 nerve roots and the contraction of musculus sphincter urethrae and detrusor urinae, the change of bladder pressure and penis erection were examined and recorded.

犬肪神经对下尿路的支曰及功能影响的实验研究：为进一步明确犬骰神经对膀耽、尿道及阴茎的支配情况，并为选择性骰神经根切断治疗脊髓损伤后痉挛性膀眈寻找理论依据，我们电刺激12条家犬的S；－／经根，通过尿流动力学检查及电生理检测来观察其逼尿肌、括约肌的收缩及阴茎勃起情况。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。