2. A pair of 19th century continental
opaline glass white and bleu de Sèvres overlay vases.
一对19世纪的欧式乳白色玻璃白色和蓝色的塞夫尔覆盖花瓶。
3. One particular location where the
opaline silicates were found was the large canyon system Valles Marineris.
发现蛋白石硅酸盐的一个特殊地点是大型山谷系统——水手谷。