When you get closer, you see that each horizontal section is made up of two pieces that converge in a right angle.
当你走近它时，会看到每个水平部分由两个互为直角的单元组成。
2
Laboratory basketball adopt flat indexing frame, adjustable Angle, surrounded by mist side down exactly the same place the large number of test pieces.
试验室篮架采平面分度架，可任意调整角度，四面落雾及受雾方面完全一致，试验片放置数量多。
3
The glass shutter is that the blade fixes the window structure on the frame of equal rank from some pieces of glass with identical Angle.