With heavy use of the railway world of high technology to promote the increasing weight of heavy haul train traction .

世界各国重载铁路借助于采用高新技术，促使重载列车 牵引 重量不断增加。

AIM : To evaluate the effect of angle weight and way of cervical spine traction on cervical physiological curvature index based on that the change of cervical physiological curvature index is the major degenerative manifestation of cervical vertebral allomeric function .

目的：颈椎生理曲度的改变是颈椎整体功能的退行性变表现，探讨颈椎 牵引的角度、 质量、方式对颈椎生理曲度的影响。

Closed Reduction of Lower Cervical Spine Dislocation with High Weight Skull Traction

大 重量颅骨 牵引复位下颈椎小关节突脱位的 机理

Clinical Study of Treatment of fracture and Dislocation of Lower Cervical spine with High Weight Skull Traction

大 重量颅骨 牵引治疗下颈椎骨折脱位的临床研究

Then we carry on loads analysis to the component beared the weight of complexity in the traction vehicle working process and progress finite element analysis by using ANSYS software .

针对拨 车 机工作过程中 承载复杂的构件进行载荷分析，并利用ANSYS软件进行有限元分析。

The influence on traction capability caused by the change of elevator car 's weight is analyzed in the terms of lift traction condition for elevator rebuilding is always related to the car rebuilding .

在电梯改造过程中常涉及到对轿厢的改造。从电梯 曳引条件的角度，分析了常见电梯轿厢 重量改变对曳引能力的影响情况。

A preliminary study on the weight of lumbar traction

腰椎 牵引 治疗 的 重量探讨

Conclusion According to this analysis when the traction force is from 30 % to 80 % of weight the lumbar traction is relatively safe .

结论以 体重的30%-80% 牵引是相对安全的 牵引范围。

Objective To study the value of and points for attention in reduction with high weight traction and internal fixation of anterior fusion in treatment of old dislocation of lower cervical spine .

目的探讨大 重量 牵引复位前路融合内固定治疗陈旧性下颈椎脱位的价值和注意事项。

Lifting method is for small and medium sized structures because of the limited lifting weight . Sliding method requires to be carried out on the sliding way and needs large traction . Application of moving with vehicles is very limited in domestic .

吊装方式 重量有限，适用于中小型结构物，滑动移位需要 牵引机构提供满足结构物滑行的较大 牵引 力，并且需要在滑道上进行，小车移位方式在国内应用还十分有限。

Treatment of old dislocation of lower cervical spine by reduction with high weight traction and internal fixation of anterior fusion

大 重量 牵引复位前路融合内固定治疗陈旧性下颈椎脱位

Anti-skid wheel balanced weight arrangement optimizes traction and safety .

防 滑轮、机器 重量的均衡分布设计，使机器运行平稳、操作简单。

If you need more power make a smooth transition to the crouched standing position don 't stand straight up you will too much weight of the rear wheel and lose rear wheel traction .

如果你需要更多的出力时，可以平顺地转换成曲膝站姿来踩踏，但切记不要站得太直，因为如此会 重压前轮而后轮却无足够的 抓地力。