1. 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。
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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.
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。
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3. 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.
