Create the nodes we'll see on our diagram (rectangular shape and elliptical shape).
创建图表中显示的节点(矩形和椭圆形)。
Spanning roughly 5 kilometers (3 miles), Goat Paddock Crater has a slightly elliptical shape.
山羊围场陨石坑略呈椭圆形，直径约5公里(3英里)。
Common shapes in fire include teardrops and tendrils for the flames and an elliptical shape for the entire space taken up by the fire.
一般火焰的形状包括火苗呈现的水滴状和卷须状，还有整个火焰呈现出来的椭圆形。
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