shoulder girdle造句

• This tissue is found mainly about the shoulder girdle .
  这种组织主要见于肩胛带周围。
• The feathers attached to the arms and the tail evidently possess the structures of " modern feathers " , which consisting of the central shafts ( rachis ) and parallel barbs . dromaeosaurids are unusual group of maniraptoran theropods . they share many similar or the same features with archaeopteryx or other primitive birds , such as : u - shaped furcula , uncinate process , laterally facing glenoid of shoulder girdle , comparatively long forelimb , large semilunate carple , retroverted pubis , ascending process of astragalus , and " modern feathers " with rachis and barbs etc . these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds , but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones
  奔龙类是一类较为特殊的手盗龙类( maniraptora ) ，它具有许多与始祖鸟archaeopteryx甚至其它早期鸟类相似或接近的特征，主要表现在：叉骨u形与始祖鸟和孔子鸟类的相同，背肋钩状突在孔子鸟类和个别反鸟类中也存在，肩臼窝绝大部分指向侧方类似于始祖鸟，肩胛骨与乌喙骨间的夹角非常接近90也和始祖鸟的相似，前肢从比例上讲显得较长，大的半月形腕骨使肘部能向侧方折过来，耻骨伸向后下方，距骨上升突与原始鸟类中的为同源结构，羽毛已有显著的分化且具备了现代羽毛的基本结构等等。
• Conclusion : the muscle strength of shoulder girdle is weak in amateur sprinters , indicating that it is one of the principal factors affecting the performance . the extensor muscle strength of shoulder joint is more influencing than the flexor muscle strength
  应用要点：文章以专业和业余的短跑运动员为观察对象，测试了其肩关节各肌群的力矩，结果发现专业运动员无论是肩关节屈肌群还是伸肌群力矩均大于业余运动员，证实了短跑运动员肩带肌群力量是造成运动员成绩差异的主要原因之一。