Conclusion: FCHA polishingCompound has local desensitization for teeth in addition to polishing effectiveness.
结论：FCHA新型抛光膏除有抛光效果外，还具有局部脱敏作用。
2
I put a little amount of polishingcompound onto a damp sponge and buff the scratched area in a circular motion until scratches disappear.
我在湿海绵上放一点混合物然后用软皮打圈圈般地涂抹这些划痕直至划痕消失。
3
The ultrasonic vibration abrasive tape polishing is a compound machining method, based on the open-loop abrasive tape polishing add to the ultrasonic vibration.