蚕丝的纤细使其成为制作高级服装的理想材料。

The ___fineness of the silk makes it ideal for high-end clothing.

她珠宝的精细做工展示了工艺的卓越品质。

The ___fineness of her jewelry craftsmanship demonstrates exceptional quality.

这枚戒指的纯度是18K金。

The ___purity of this ring is 18 karat gold.