目的探讨自锁髓内钉逆行插钉技术治疗肱骨干骨折的临床应用效果。
Objective To evaluate the effect of retrograde self-locked nail for humeral fractures.
在做颗粒分离实验时，研究人员在一块大乐高板上插满了圆柱状乐高钉，然后把板垂直放入盛满粘性液体甘油的鱼缸。
For the particle-separation experiments, the researchers covered a large Lego board with cylindrical Lego pegs and placed the board vertically in a fish tank filled with glycerol, a viscous liquid.
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