Before the word aspros came to Greek it had actually been Latin asper meaning "rough" and was applied to the uneven surfaces of carvings and the faces stamped on COINS.
在“aspros”成为希腊语之前，它实际上曾经是拉丁语，意思是“粗糙的”，被用于形容雕刻品那凹凸不平的表面和硬币两面的不规则的的起伏。
On the basis of technology analysis for the U shape pierced side holes, this paper introduced the struture of compound dies for U shape stamped and pressed-word.
通过对U形件侧面冲孔工艺的分析，介绍了U形件冲孔、压字复合模结构。
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