1。纳米 - 羟基磷灰石牙膏的兴起1.1简要概述了纳米羟基磷灰石?纳米羟基磷灰石(通常是缩写为n-hap)是一种生物活性形式的羟基磷灰石的形式,是一种自然存在的矿物矿物和botherne and of tirment and of tirmentimenther and of timern and nuther nuther and of timern and nuthermanoor normanganic nornagric norganic nornagric norganic nornagric and osencouncon。它的化学fo
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