节点文献
锅筒椭圆形封头人孔板边过渡圆弧制图的数学模型
Mathematical Model of Manhole Skirt Transitional Circular Arc Drawing of Boiler Drum Ellipsoidal Head
【摘要】 推导出确定锅炉锅筒椭圆形封头人孔板边过渡圆心坐标的公式,可供计算机绘图时的参考。
【Abstract】 The formula which ascertain the coordinates center of the circle of the manhole skirt transitional circular arc of boiler drum ellipsoidal head has been deduced,which can be a reference when it is drawn by computer.
【关键词】 锅筒椭圆形封头;
人孔板边;
过渡圆弧;
坐标;
【Key words】 boiler drum ellipsoidal head; manhole skirt; transitional circular arc; coordinate;
【Key words】 boiler drum ellipsoidal head; manhole skirt; transitional circular arc; coordinate;
- 【文献出处】 锅炉制造 ,Boiler Manufacturing , 编辑部邮箱 ,2003年04期
- 【分类号】TK222
- 【下载频次】22