axial center track 轴心轨迹
axle center track 轴心轨迹
car track line 电车轨道线
cutter center track 刀具中心轨迹
deuble-track line 复线
double line (track) rail 双线
existing track line 既有线
four track line 双复线
main line track 干线
optimum track line 最佳航线
Parallel line track 平行直线轨迹
single line (track) rail 单线
single track line 单线区间
single-track Line davision 单线区段
single-track line division 单线区间
Tool Center Track 刀具中心轨迹
track center 轨道中心
track center distance 轨道中心距离
track center-to-center spacing 磁道中心间距