Say that I give you an ellipse in space as maybe the more, well, one exciting way to parameterize an ellipse in space is maybe the intersection of a cylinder with a slanted plane.
给定一个空间里的椭圆曲线，一个来参数化这曲线的有趣示例是,表示为圆柱体与斜面的相交部分。
2
As the liquid is removed, it increases the volume of the vapor space of the cylinder.
在液体被提取后，它增加了钢瓶蒸气空间的体积。
3
The combustion space is in the middle of the cylinder between the pistons.