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。
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。
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.
通过对粗晶合金性能的检测和金相组织的观察，研究了碳含量对粗晶硬质合金性能的影响。
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