查询词典 front and back

The earliest known form of Greek chair, going back to five or six centuries before Christ, had a back but stood straight up, front and back.

已知最早的形式希腊椅子，可追溯到五，六百年前，基督已经回来了，但水量直线上升，前方与后方。

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。

Tyre abrasion of double-front-axle steering automobile follows above rule as a result of two factors namely change of adjustable pole's length and deflexion of front and back steering axles.

双前轴转向汽车之所以产生上述的轮胎磨损规律，主要有两个原因，即可调连杆长度变化和前、后转向轴偏斜。

Through measuring the pacients'ALT,AST,TBIL,vinus replication index,T lymPhoid cell,The NK cell, immunity globulin and complement etc in DH, LS, DH'two two treatments before and after, inquire and compare each immunity index sign and the relation of DH and LS;Observation DH two treatments in front and back each index sign and certificate integral calculuses change, comParing The treatment in front and back machine immunity function appearance.

分别检测湿热蕴脾证两组治疗前后和肝郁脾虚证组的ALT、AST、TBIL、病原学指标、肝脏B超以及血清T淋巴细胞、NK细胞、免疫球蛋白、补体的水平，观察、比较各免疫学指标与湿热蕴脾证、肝郁脾虚证的关系，观察湿热蕴脾证两组治疗前后各免疫学指标及中医证候积分的变化，比较治疗前后机体免疫功能的变化。

Styles, biggest changes is in the color seeming:In front and back splash guard, fuel tank cover, car wheel , row spirit, in front and back avoid earthquake, enter spirit way etc., include originally the chrome, silver-plating part all change for pure black, assume a new aspect, felling more parties, more overbearing

96款，最大的改变就是在颜色外观上：前后挡泥板、油箱盖、车轮毂、排气、前后避震、进气道等等，包括原来镀铬、镀银的部分全部改为纯黑色，面目一新，感觉更硬派，更嚣张！

Fully landscaped front and back with sprinkler system in front.

充分园景的前后院，自动喷水灭火系统在前面。

When the parameter matching of the wheel location is improper, namely, the matching between the wheel toe-in and the wheel camber angle is ill-suited, abrasion of the two wheels of the same steering axle is inside or outside simultaneously, because of wheels sideslip. However, when double-front-axle steering system failure take place, abrasion of the two wheels of the same steering axle is in the same side, and that, tyre abrasion direction of front and back steering axles is rightabout. That is to say, if tyre abrasion of front steering axle lie in the left side, tyre abrasion of back steering axle lie in the right side to a certainty, which is the rule of tyre abrasion of double-front-axle steering automobile.

当定位参数匹配不当时，同一转向轴上左右车轮的磨损部位都在内侧或外侧，原因是左右车轮在滚动的同时还要产生相向或反向侧滑；而双前轴转向汽车前、后转向轴引导汽车转向方向不一致时，同一转向轴左、右车轮的磨损部位都在同一侧，而且前、后转向轴上的车轮偏磨损方向正好相反，即如果前转向轴左、右车轮磨损部位在左侧或右侧，那么后转向轴左、右车轮磨损部位就在右侧或左侧，这是双前轴转向汽车特有的轮胎磨损规律。

Main products: more than sixty products for Cherokee automobile: finished products of dash board, finished products of steering tubular column, finished products of rise-fall device of front and back door glass, finished products of the treadle of brake's clutch, finished products of thrust rod, finished products of manual brake rod; more than thirty products for Fukang automobile, finished products of dash board, finished products of pedal , front transverse stable rod and left, right torsion bar; more than twenty products for Jinbei bus co.,ltd.

生产的主要产品：为切诺基汽车配套的仪表总成、转向管柱总成、前后门电动玻璃升降器总成、制动和离合器踏板及支架总成、推力杆总成、手制动杆总成等60多个产品；为富康车配套的踏板总成、前横向稳定杆和左右扭杆等30多个产品；为金杯客车有限公司配套的扬声器隔删、安装铰链等20多个产品。

These 25 are separated by 25 meter kick, it is important in streamline drill that you can also consider an alternative kicking position in between each segment of streamline +2, streamline +4 and streamline to the full stroke alternating with 25 torpedo kick on your back then 25 with torpedo kick on your front, 25 with arms folded kick front and back, and 25 overlapping arms kicking, both on you front, side, or back.

在这些25练习之间穿插着进行25米打腿。流线型练习中需要留意的是，你可以在每个流线型+2、流线型+4和全划臂流线型练习中间穿插的打腿中考虑采用交替的姿势– 25米仰卧鱼雷打腿、然后25米俯卧鱼雷打腿、25米手放两侧仰卧和俯卧的打腿、以及手前交叉的俯卧、侧卧和仰卧打腿。

Adopt one kind of design plan that PLC controls in the protection the main body of a book has been introduced succeeding an electricity in electric system, that capital is designed time is that the KV circuit imports 10 mainly , change into 380 V voltage grades, before the PLC front and back add front to passage and the queen to passage, change before to passage middle course electric current , voltage a train of, the wave filtering the general is exchanged changing waking up with a start for direct-current, the entering carrying out comparison and switch amounts again , controlling conducting entering PLC, by PLC, The malfunction signal is shown out by lamp light or the alarm signal.

本文介绍了在电力系统继电保护中采用PLC控制的一种设计方案，本次设计主要是将10KV线路输入，转化为380V电压等级，在PLC前后加入前向通道和后向通道，在前向通道中经过一系列的电流、电压转换，将交流转换为直流，进行滤波，再进行比较和开关量的输入，传入PLC，通过PLC的控制，将故障信号通过灯光或者报警信号表现出来。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。