intermediate principal plane
primary principal plane
principal plane [of photograph]
principal plane of symmetry
principal vertical line
secondary principal plane
load acting on a vertical plane
Vertical Plane
垂直投影面
竖直面
竖直平面
纵平面
垂直[平]面
中垂面
垂直面
垂直平面
inner vertical bristles inner vertical bristle
Range of vertical scales for positive and negative vertical component
plane to plane contact element
11 principal officials with portfolios
2D principal component analysis
2-Dimensional Principal Component Analysis