短語(yǔ)詞組短語(yǔ)acellular afibrillar cementum 無(wú)細(xì)胞無(wú)纖維牙骨質(zhì)acellular intrinsic fiber cementum 無(wú)細(xì)胞固有纖維牙骨質(zhì) 返回 acellular cementum