用螺丝钉把鞋撑固定在书本上。
在你打算用螺丝钉把鞋撑固定在底座上的位置用铅笔做记号。
Mark with a pencil where your screws will go to attach the stand to the book base.
采用自行研制的经椎弓根多钉固定撑压系统治疗脊柱侧凸50例取得显著疗效。
Significant effect has been obtained in 50 cases with scoliosis by the system by ourselves developed of multi-screw fixed distractor-compressor via the vertebral pedicle from Dec. 1989 to Dec.
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