Fluorine is present in the hydroxyapatite mineral in natural tooth enamel,which plays a key role in the prevention of de......

本文介绍HEI绝热材料的研究过程,对水泥-泡沫颗粒比对HEI绝热材料的强度、干密度和吸水率等材性的影响进行了讨论.在此基础上得到......