dentine A hard mesodermal material in teeth and some scales (cosmoid, ganoid and placoid scales) produced by odontobasts.
齿质组成牙齿或某些
片(硬
)中层的坚硬
质。
)具有齿质的dentine A hard mesodermal material in teeth and some scales (cosmoid, ganoid and placoid scales) produced by odontobasts.
齿质组成牙齿或某些片(硬)中层的坚硬质。
enamel A shiny hard material covering the dentine of teeth and the surface of some scales (cosmoid and placoid scales).
珐琅有光泽的坚硬质包覆在牙齿及一些片(圆)
。
是脊椎动所产生最坚硬的质。
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