定位线 meaning in English

line of position
lop
orientation line
position line

Eyellipse locating line
眼椭圆定位线
Fittings for overhead contact system of electrification railway - part 13 : steady clamp
电气化铁道接触网零部件第13部分：定位线夹
2 mark the position line at the bottom of baluster and use the level rule to make the balusters vertical
2先在小柱的底端根据图纸画出定位线，再将小柱用水平尺靠到垂直。
The second method is using the bearing from the aircraft to the buoy , this report develops an algorithm which employs extended kalman filters to determine estimated position
方位测量定位法是在不同位置测得两个以上的方位面相交出一条定位线，由定位线与水平面的相交点实现二维平面定位。
The paper mainly expounds the principle of automatic name placement of area element by center array method , the algorithm of polygon pretreatment , the method of getting array rotating center and the algorithm of name placement positioning line
摘要本文阐述了中心阵列法进行面状要素自动注记的原理、多边形预处理算法、求取阵列旋转中心的方法和求取注记定位线的算法。