那些含有碳酸氢盐或美白成分等有研磨作用的牙膏。
Abrasive tooth pastes such as bicarbonate or whitening pastes.
对比分析还得出机械研磨与跑合有相似的作用，而研磨的作用更为明显。
It also shows that the effect of polishing is similar to and more obvious than...
对比分析还得出机械研磨与跑合有相似的作用，而研磨的作用更为明显。
It also shows that the effect of polishing is similar to and more obvious than...
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