垂直投影直方图
vertical projective histogram
垂直面直接曝辐量
direct solar radiation on perpendicular plane
垂直投影函数
vertical projection function
垂直投影校正
Vertical projection adjustment
L1~L4垂直投产
L1~L4 vertically put into production
垂直面补偿法
vertical plane compensation method
垂直面定常运动
steady motion in vertical plane