Its ore minerals were systematically studied on the basis of thin section and polishedsection 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。
2
Particular care must be taken to avoid damage by manual methods when descaling thin sectionpolished 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。
3
The effect of carbide content on the properties of coarse grained cemented carbide is studied by means of measuring properties and observing polished cross section.