OBJECTIVE: to observe the methods and results of screw insertion and histocompatibility of host using Kirschner wire plus tapping technique.

目的：以徒手克氏针加叩击法制备胸椎椎弓根钉道，观察螺钉置入的准确性及置入后与宿主的组织相容性反应。

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But it also has a fast processor, a brilliant screen plus four separate radios for tapping the vast majority of 2G, 3G and 3.5G networks around the world.

ECONOMIST: The competition this time will be a lot stiffer