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所以，轨道总体上说是椭圆的。 So, orbits in general are ellipses. | ||
椭圆的另一个名字叫“卵形的”。 Another name foran ellipse is an oval. | ||
球面上共焦点之椭圆、双曲线，在球心投影中仍投影成共焦椭圆、双曲线。 The cofocal ellipse and hyperbola of spherical surface will also be projected into the cofocal ellipse and hyperbola in gnomonic projection. | ||
针孔成像模型下非主光轴上的球体成像为椭圆，椭圆中心偏离球心投影点。 The image of sphericity which does not located the principal optic axis is an ellipse based on pinhole model, and the image center offsets from the projection of the sphere center. | ||
特殊凸体(椭圆)的包含测度。 Convex body and its contain measure. | ||
总功是负的，所以是椭圆轨道。 It is negative; it is an ellipse. | ||
几乎没有已知的新恒星形成于椭圆星系。 Few new stars are known to form in elliptical galaxies. | ||
怎样参数化空间上的椭圆曲线呢？ Yes? How do you parametrize an ellipse in space? | ||
在大圆圈旁边画一个绿色的椭圆。 Draw a green oval beside the big circle. | ||
你要准备打开椭圆机或者在跑道跑步。 You're ready to hit the elliptical machine or the running trails. | ||