As one of these components, friction modifier plays an important function for removing the dirt and colored substance attached to the surface of tooth.
磨擦剂作为牙膏的组分之一，在其中起着重要的作用，它能有效的除去附着在牙齿表面的污垢和有色物质。
As one of these components, friction modifier plays an important function for removing the dirt and colored substance attached to the surface of tooth.
磨擦剂作为牙膏的组分之一，在其中起着重要的作用，它能有效的除去附着在牙齿表面的污垢和有色物质。
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