apex distance

distance ... antenna distance 天线间距 apex distance 顶距, 钻尖(偏移距离), 分度锥母线距离 apparent distance 视距 ...

节锥顶到齿冠的距... ... ) nose row 锥顶齿圈 ) apex distance 锥顶距 ) pitch-cone apex to crown distance 节锥顶到齿冠的距离 ...