早在一世纪前，数学家就提出过这种构造的假设（译注：指希尔伯特曲线），现在这种假设就被应用于对人类基因组立体结构的描述。
This type of shape was mathematically postulated over a century ago, and has now been shown to describe the genome’s three-dimensional structure.
微积分都是关于连续统的——变化的比率，曲线的面积，立体的体积。
Calculus is all about continuums - rates of change, areas under curves, volumes of solids.
摘要：道路几何线形是由直线与曲线连接而成的空间立体线形形状，也就是道路中心线的空间描绘。
Abstract: : the road geometry is are connected by a straight line and curve of a three-dimensional linear shape, also is the center line of the road space.
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