目的：比较三种不同直径人骨拉力螺钉的剪切和扭转性能。

To compare the cutting and reversing property of there different diameter conicalpulling-screws.

youdao

目的：比较三种不同直径人骨拉力螺钉的剪切和扭转性能。

To compare the cutting and reversing property of there different diameter conicalpulling-screws.

youdao