羟基磷灰石羥基磷灰石

qiǎng jī lín huī shí

Meaning

hydroxyapatite (calcium phosphate mineral forming bone and tooth enamel)

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Characters

羟qiǎnghydroxide羊基jīfoundation, base其土磷línphosphorus石粦灰huīashes; dust; lime, mortar火石shístone, rock, mineral厂口