牵引的

Considering the mean square of the dynamics longitudinal force on the drawgear as an object function, and considering the rigid impact probability as a constraint condition, the optimizing software named TTCFDOS (Tractor-Trailer Combinations Flexible Drawing Optimization System) has been developed.

在对上述确定性参数系统进行频域分析的基础上，以牵引架上动态纵向力的均方值为评价指标和目标函数，以刚性冲击概率为约束条件，开发了挂接车辆柔性牵引优化设计软件系统TTCFDOS，对挂接车辆的柔性牵引参数进行了优化设计，获得了与挂接车辆经常行驶工况相对应的优化柔性牵引参数

Under the condition of running on the hard soil pavement with the total train mass, the riding comfort tests of the tractor-trailer combinations with the stiff and the flexible drawgear have been performed, and the dynamics longitudinal force has been studied. When the flexible drawgear was used, the theoretical results and the experimental data showed that the peak value of the dynamics longitudinal force, the peak value of the RMS of the dynamics longitudinal force, and the PSD both of the dynamics longitudinal force and of the longitudinal acceleration decreased largely.

以平稳随机路面激励状况下满载行驶作为挂接车辆的经常行驶工况，进行了挂接车辆以刚性牵引架及不同柔性牵引参数的柔性牵引装置牵引运行时的平顺性试验，柔性牵引理论分析结果与试验结果均表明，使用柔性牵引参数值接近优化值的柔性牵引装置后，动态纵向牵引力的峰值、功率谱密度峰值及均方根值均有了大幅度的降低；主车和挂车的纵向振动加速度功率谱峰值也有了很大的降低。

In the project of Dongfang-Yangpu-Haikou Long Distance Transportation Pipeline Crossing through Changhua River, the construction technique of launch way with slide boards is utilized, that is, the pulley block fixed on opposite bank tows the pipeline directly. The pulley block of a 32t low speed windlass successfully towed the integral pipeline section through the river.

在海南东方－洋浦－海口输气管道工程的昌化江穿越施工中，采用了发送道滑板施工技术：滑轮组过江直接牵引管道，32t慢速卷扬机牵引滑轮组将管道整体牵引过江，牵引穿越一次成功。

Aircraft carrier-based fighter, not even with the slide jump the catapult off the front wheel traction mode, the aircraft landing stage in the block are inevitably linked with a bow after the process, the front landing gear before the grounding process necessarily requires the structure to withstand large the impact of such a large impact load without a decentralized structure with high strength and conductivity is unbearable.

航母舰载战斗机即使采用滑跃而不是前轮牵引的弹射起飞方式，飞机在拦阻着陆阶段挂钩后都必然会有个低头的过程，前轮接地过程中前起落架必然需要在结构上承受很大的冲击，这么大的冲击载荷如果没有一个高强度的结构进行分散和传导是难以承受的。

The update instrument can achieve the purposes of tiny-hurt, rapidness, combining rapid traction and reposition with sustaining traction and fixation when be used to treat fracture of zygomatic bone.

改进型颧骨颧弓骨折牵引复位固定器更加便捷实用，实现了微创、快速牵引复位与持续牵引复位固定相结合治疗颧骨颧弓骨折的目的。

The edgewise technique was used to align and level the upper and lower arches gradually and upright the lower incisors. Then, modified LeFort Ⅰ osteotomy was operated with 4 cases pterygomaxillary disjunction and the other 2 cases not. The maxillas were not moved during the operation and sutured mucoperiosteum at the same place. After 3-5 days latency period, elastic distraction about 700g/side and increasing to 1400g/side gradually, was started with two cases which the maxillas were not cut off totally.

术后经过3—5天的延迟期即开始牵引，2例行不完全截开术者，采用弹性牵引，力量从700g／侧逐渐增加至1500g／侧；4例行完全骨截开术者，首先采用刚性牵引和口外牵引钩，每天缩短牵引钢丝1mm，2例直接达到矫治要求，其余2例达到浅覆盖后，截去口外牵引钩，换弹性牵引和口内牵引钩继续前牵上颌骨。

The femoral circumflex arteriography of the normal leg was done in 8 patients, and three of them were simultaneously done in a postion of internal rotating of straight leg. Results Comparison with the arteriographic findings in absence of traction, all retinacular arteries but inferior arteries were depicted few branches and less femoral head perfusion in all 9 patients, especially in that of medial femoral circumflex arteriography, as hip joint was tractating in neutral position with the same speed and volume of injecting contrast medium and, the veins were demonstrated poorly or delayed.

结果同一血管部位，同等对比剂注射流率、总量造影，与中立位无牵引状态下造影所见比较，9例患髋中立位牵引时，除外下支持带动脉，所有未损伤的支持带动脉均有不同程度闭塞，相应股骨头颈部灌注不佳或几乎无灌注，静脉显影延迟或显示不清，4例牵引力由3kg增至5kg时，上述改变更为明显；5例患髋维持伸直内旋位时，所有支持带动脉尤其细小分支未见明确显示，股骨头灌注差或未见明确灌注，改变甚于牵引时；2例正常髋内旋位时造影改变类似。

Through bonding with the waist fixed to the waist - through bonding with the brassieres fixed to the chest - with traction through waist lock adjustment to the appropriate length - who was lying on his bed, brassieres fixed to the two scallops Chuangjia - will lead the direction of fixed to the waist Chuangjia - will be on the tractor traction traction Uncoupling live waist - Reciprocating tractor pulling rope can be manipulated to achieve traction purpose.

因为存在专业术语，请不要使用翻译软件，好的翻译将被追加分数！！通过粘合带把腰围固定到腰部－-通过粘合带把胸围固定到胸部－-将腰围牵引带穿过锁扣调节至适当长度－-人躺在床上，将胸围的两根带子固定到床架－-将牵引器固定到腰部方向床架上－-将牵引器上的牵引钩钩住腰围的牵引器－-往复拉动牵引器操纵绳即可达到牵引目的。

From the Nordic World Ski Championships in the Czech Republic to the Freestyle World Championships in Japan to a small family rope tow in Maine, skiing takes many forms.

从在捷克共和国举行的北欧世界滑雪锦标赛，到日本举行的自由式滑雪世界锦标赛，到缅因州一个小的用绳索牵引的家庭滑雪场，滑雪运动有各种不同的形式。

Push cars are used only in remote areas; Formosa's populous west and north are served by good steam railroad lines; the east coast line is less dependable.

由人推动的小车只在边远山区中使用，在福摩萨人口稠密的西北部地区车厢是由运作良好的蒸汽机车牵引的，而东岸的这些远没有这么可靠。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐