block mica meaning in Chinese

块云母

Classification for natural muscovite block mica and thins based on visual quality
天然白云母块及薄片基于目检质量进行的分类
Standard classification for natural muscovite block mica and thins based on visual quality
天然白云母块及薄片的目检质量标准分类
Specification for natural block mica and mica films suitable for use in fixed mica - dielectric capacitors
云母介质固定电容器用天然块状云母和云母薄膜规范
Standard specification for natural block mica and mica films suitable for use in fixed mica - dielectric capacitors
固定式云母介电电容器用天然云母块和云母薄片的标准规范