凹坑的横截面形状和髓内针锁孔的横截面形状相同，横截面形状是圆形或者是椭圆形。
The cross section shapes of the pits are same with that of the lock hole of the intramedullary nail, which are roundness or ellipse.
凹坑的横截面形状和髓内针锁孔的横截面形状相同，横截面形状是圆形或者是椭圆形。
The cross section shapes of the pits are same with that of the lock hole of the intramedullary nail, which are roundness or ellipse.
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