The rules of badminton are similar to those for tennis , but the method of player playing is quite different . badminton requires flexible wrist actions . the racket can be held with a " shake hand " grip , but needs to be adjusted constantly in response to different ball movements 羽毛球的规则大致跟网球一样,但是打法和网球不同.羽球注重腕部的灵活运动,握拍方式虽然也有[菜刀式]握法,好适应多变化的球路
Methods 36 cases with st rangulated destructive injury of the upper limb were treated with the folloving procedures : ( 1 ) shorteni ng of upper limb ( 12 cases ) . ( 2 ) recons truction of the thumb ( 3 cases ) and fingers ( 3 cases ) by transfer of the preserved fingers . ( 3 ) repair o f forearm and wrist tissue defect by free composite tissue flap transfer ( 9 cases ) . ( 4 ) secondary n erve and tendon repair following pedicled skin flap or fascial flap 方法对36例上肢不同平面绞轧性毁损患者采用下述方法： ( 1 )肢体短缩修复上肢12例； ( 2 )残指移位再造拇指3例，再造手3例； ( 3 )游离复合组织瓣移植修复前臂及腕部软组织缺损9例； ( 4 )带蒂皮瓣、筋膜皮瓣修复手部创面，二期修复神经肌腱重建手功能9例。
The analysis starts with a preprocessing function in hand and wrist x - ray - images ; then , these images are unified ; next , epiphyseal / metaphyseal regions of interest ( emrois ) are extracted while doing an independent processing in the wrist region ( k - l transform ) , which improves the method raised by mr . lv and gains a better result 文章提出了一种数字图像分析方法：首先对采集的手腕部骨图像进行预处理，进行图像的归一化；然后，提取感兴趣的骨骺/干骺端区域，并对腕部骨进行独立处理( k - l变换) 。
