vellum

The calligrapher uses vellum for her most important commissions because it has a smooth surface.

这位书法家在最重大的委托作品中使用仿羊皮纸，因为它表面光滑。

The library keeps rare books bound in vellum under glass cases.

图书馆将用仿羊皮纸装帧的珍贵书籍放置在玻璃柜中。

Vellum is thicker than ordinary paper and gives documents an elegant look.

仿羊皮纸比普通纸厚，让文件看起来更优雅。