牙颈 牙颈的英文 英语翻译 cervix dentis; collum dentis; dental neck 拓展翻译 牙颈区cervical zone 牙颈韧带ligamenea circulare 镶牙学prosthodontia 向牙尖cuspad 象牙ivoryebur; ivory 象牙海岸Ivory coast 象牙海岸的Ivorian 象牙色蜡ivory wax 象牙树属Mata Forst. 象牙塔the tower of ivory 象牙炭ivory black; Paris black 象牙酮宁eburnamonine 象牙样的eburneous 象牙样瘤ivory-like tumor 象牙皂ivory soap 象牙纸ivory paper 象牙纸板ivory board 象牙质strata eboris; substantia eburnea 象牙质样外生骨疣ivory exostosis 橡胶牙形模rubber dentoform mold