nacreous layer powder

例句：

1. 1. Thepearl layer powder is used to enhance the luster of pearls.
   珍珠层粉末用于增加珍珠的光泽。
2. 2. This nacreous layer powder is highly sought after for its unique properties.
   这种珍珠层粉末因其独特的性质而备受追捧。
3. 3. The nacreous layer powder was used in ancient jewelry making as a means of enhancing beauty.
   在古代珠宝制作中，珍珠层粉末被用作增强美感的一种手段。