First we go to watch the arciform movie. The movie's name , It is a strange world , there are many animals and beautiful scene.
首先我们看穹幕电影，电影是《阿拉斯加》，它是神奇的世界，有许多动物和美丽的景色。
2
One kind of beam type gas injection packing support plate used in the column is introduced. The curve equation of the developed pattern of the arciform plate is presented.