polished thin section

Particular care must be taken to avoid damage by manual methods when descaling thin section polished surfaces and close tolerance parts.

较薄部位、抛光表面和紧公差除垢时，应特别小心，避免人工方法损伤表面。

There are two types of specimens routinely prepared for analysis, thin section and polished bulk specimens.

用于岩相分析的试样有薄截面试样和经过抛光的块状试样两类。

Its ore minerals were systematically studied on the basis of thin section and polished section microscope observation and EPMA.

本文在详细的光、薄片鉴定和电子探针分析的基础上，首次对其矿石矿物进行了系统的研究。