The utility model has simple structure, convenient use and manufacturing and high positioning accuracy, and is in favor of shortening operation time.
具有结构简单，制造和使用方便，定位精度高的优点，有利于缩短手术时间。
The utility model has simple structure, convenient use and manufacturing and high positioning accuracy, and is in favor of shortening operation time.
具有结构简单，制造和使用方便，定位精度高的优点，有利于缩短手术时间。
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