前头前片  prefrons

头后位头影测量  Hemifacial

前前后后算法  forward-backward algorithm

后前位X线头影测量  posteroanteriorcephalometricanalysis

后头后缝  postoccipital suture

后头后隆起  postoccipital ridge

后头后轮缘  postocciput

接头前后错开方式排放管子  collar pipe

舌头后位  backward tongue position

头颅CT片  Head CT film

自然头颅位置  natural head position

前后位置  the front and back position

膝关节前后位  knee joint anterior-posterior position

胸部后前位  chest image

腰椎前后位  Middle area position

足部前后位负重摄影  foot AP weight-bearing projection

气孔片前片  prelabia

前侧片前片  pre-episternum

haptolachi」上咽头后中区  haptolachus 「pl.