frontale额骨frontaladj.前的；正面的；额的n.额饰；祭坛前面的罩巾；建筑物的正面；三角门楣frontal water turbine前水叶轮机frontal sinus puncture前额窦穿刺术Frontal lobe contusion额叶frontal plane QRS loop额面QRS环frontal fillet welding正面角焊frontal plane horopter额平面双眼单视界frontal chromatography前端分析Frontal plane QRS axis额面电轴frontal projected area正投影面积frontal glabellar lobe头鞍前叶