“nail-head”的英英意思

单词 nail-head 释义 nail-head[f. nail n. + head n.1]1. The head of a nail. Also fig.1683Moxon Mech. Exerc., Printing x. ⁋9 The Plate..with the extuberancies of Nail-heads would hinder the free sliding of the Quoins.1839Ure Dict. Arts 876 Compressing the...