abrasion test of coating film的用法和样例：
- The effects of the composition and molecular weight of the HDI oligomer on the properties of coating film were studied.
- Use special emulsifier, its appearance is halfway transparent, and the sheen of coating film is high.
- This article has described a number of scribing patterns of coatings film in neutrae salt spray test and discussed the evaluation methods of results.
- The acrylic resin was used to modify PVDF, and the influence of titanium white pigment on the properties of coating film was researched.