mica sheet

例句：

1. 1. The mineralogist used a mica sheet to analyze the crystal structure of the minerals.
   矿物学家使用云母片来分析矿物的晶体结构。
2. 2.The scientist discovered that the mica sheet had been used to make the glass window.
   科学家发现云母片被用来制作玻璃窗户。
3. 3. The mica sheet was carefully cut and polished for use in the museum exhibit.
   云母片被仔细地切割和抛光，用于博物馆展览中。