目的调查跖骨下籽骨变异种类与发生率。
Purpose To investigate the morphologic variations of the sesamoids below the first metatarsal head.
本文就第一跖骨头下籽骨的解剖及生物力学国内外最新研究进行概述。
Below is a summary of the international and domestic reference data of recent years on anatomy and biomechanics of the sesamoids below the head of the first metatarsal.
注水管和下籽管的下端固定在打孔器的两平行孔内，上部由联接片相联；
The lower ends of the water filling pipe and the seed discharging pipe are fixed in the two parallel holes of the perforator, and the upper parts are connected by connecting sheets.
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