RESULTS:In vertebral pulp extirpation group, the stress was proved to be the highest at superior edge, posterior middle part, lower edge and anterior middle part of small joints under anteflexion, backward extension, compression, lateroflexion and revolving states, moreover, small joint stress in artificial lumbar intervertebral disk was higher than that in normal intervertebral disk, but obviously lower than that in vertebral pulp extirpation group;however, the small joint of the middle part of artificial lumbar intervertebral disk bore the highest stress under revolving states.

結(jié)果：髓核摘除組小關(guān)節(jié)的上邊緣部插插国产、后中部操操操操操操黄片免费看、下邊緣部和前中部在前屈欧美一级特黄A片免费看是日本牲、后伸被操到喷水视频、壓縮黄色视频99精品视黄色小说频、側(cè)屈日本三级片2021、旋轉(zhuǎn)狀態(tài)應(yīng)力最大，人工腰椎間盤組的小關(guān)節(jié)的應(yīng)力比正常椎間盤高黄色性爱视频网址，但明顯小于髓核摘除組无码播放，但正中部在旋轉(zhuǎn)狀態(tài)下，人工腰椎間盤小關(guān)節(jié)的中心部位承受的應(yīng)力最大黄页网站免费视频福利区。

The Back Tracker revealed that the mechanical tools reduced posture angles significantly (p≤0.05) for installing the windows, but not for left lateroflexion during pre-assembly of windows.

事后追蹤方式在機械性工具降低姿勢角度之顯著性是具有相關(guān)的（p≦0.05）在安裝車窗作業(yè)上人妻一级片综合视频，但并沒有對於在車窗之預(yù)先組裝過程里在左邊之側(cè)彎曲上。

lateroflexion：側(cè)屈

laterodeviation 側(cè)向偏斜 | lateroflexion 側(cè)屈 | lateroposition 偏側(cè)變位

lateroflexion,lateroflection：側(cè)屈

側(cè)偏 laterodeviation | 側(cè)屈 lateroflexion,lateroflection | 偏側(cè)變位 lateroposition