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。

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.

介绍了塔器内梁型气体喷射式填料支承及其拱形板展开图，并通过详细计算给出了该展开图的曲线方程。