它是一种含有多种成分的磨料，使用于抛光物体过程中。
用含有颗粒的抛光膏进行抛光能够清除牙齿表面污垢。
Polishing with a gritty paste can remove stains on a tooth's surface.
通过上述光谱法确定了该塑料抛光膏的化学组成和结构。
With these spectral methods, the chemical composition and the structure of the polishing paste for plastics were identified.
结论：FCHA新型抛光膏除有抛光效果外，还具有局部脱敏作用。
Conclusion: FCHA polishing Compound has local desensitization for teeth in addition to polishing effectiveness.
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