improved vertical line intersecting method
vertical line locus method
angles drift off vertical line
cleaning horizontal and vertical line
Deflection of the vertical line
deviation of vertical line
mid-point of vertical line in crossover lines
multi-vertical-line-element model
principal vertical line
Representative Vertical Method
short stress line vertical roll mill
the point on the vertical line
vertical line
重直线
正倒垂线
垂线
垂直线
垂直斜纹
竖线
铅垂线
铅垂
纵线
垂直行
Vertical line current source