基本解釋[材料科學]犢皮整飾羊皮紙英漢例句權威例句Bookworms were a problem in the Middle Ages, but a decent vellum parchment could last 300 years.FORBES: Lucretius's Legacy Depended On The Toughness Of Vellum. What Will Save Ours?Conservationists working in a new branch of the library still face the task of removing ash deposits between pages, repairing parchment volumes and vellum spines that split in the fierce heat—a painstaking process that involves weeks of work on each book.ECONOMIST: The Duchess Anna Amalia libraryparchment vellum更多例句詞組短語短語vellum parchment 上等牛犢皮紙parchment vellum更多詞組專業(yè)釋義材料科學犢皮整飾羊皮紙