当脊柱后柱完全横断时, ASF──脊柱系统前屈失稳.When the posterior column is severelyinjured, ASF fails to stabilize the spine in nexion.在坐立前屈中, 在向前舒展的脚下垫上卷起来的手巾.In seated forward bends , place a rolled - up towel beneath the knee of extended...
There have been at least thirteen previous attempts to reach the North Pole unaided.之前至少已经有过13次想独立到达北极的尝试。Gross crystalline imperfections like twinning are apparent to the unaided eye.粗的晶体不完整性,如孪生体可用肉眼看出.That comet is in...