Method 50 dry samples of atlas and the projection and direction of screws were measured with vernier calipers and protractors.

  • 方用游标卡尺和量角器对50例干燥寰椎标本的后弓进钉点及进钉方向等相关参数进行测量。

  • 互联网摘选 2025-01-20 12:34:08

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