FIG. 3 is a left side cross-sectionalelevation view of the air purifier shown in FIG. 1 in the vertical operating orientation;
图3为如图1所示的空气清洁器在垂直操作方向上的左侧截面正视图；
2
The system can draw general structural map plan, elevation, cross-sectional map and statistic the total number of concrete projects, which greatly improves design efficiency and equality.