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.
针对东方女性穿着贴身礼服容易暴露身材缺陷且上身易下滑的问题，采用立体裁剪的造型方法，通过礼服上身造型实例，分析了贴身礼服胸腰曲线塑型的方法。
The ways of shaping the curve of bust and waist of fitted formal dress were analyzed by example using formal dress′s bodice structural through solid constitute.
应用微元法给出了在三维欧氏空间中质量曲线和质量立体对任意一条直线的转动惯量的计算公式，并给出了对坐标轴的转动惯量的简化计算公式。
Via an infinitesimal method, the author offers a computing formula for the moment of inertia of mass curves and mass cubes against any straight line in Euclidean space.
根据风力机叶片设计的实际过程，在三次参数样条曲线拟合叶片翼型曲线的基础上，提出了一种在计算机上能立体显示叶片截面及其结构的程序设计方法。
On the basis of blade airfoil curve fitted with triple spline function and the practical process, a kind of program design method is offered to display the section of WECS blades and its structure.
使用二个双曲线(三个接收机)系统能获得2d目标位置，当使用最少三个双曲面(四个接收机)系统能实现完整的3d立体目标定位。
Using two hyperbolas (three receivers) the system can obtain 2d target position, while using at minimum three hyperboloids (four receivers) the system can achieve full 3d target locating.
然后用三次样条法拟合剖面边缘曲线并插值采样，把立体树冠分解成许多微小的切片分别求体积和表面积，依次累加就得到所需结果。
These data are fit with method of spline and resampled to divide crown into many small slices, whose volume and surface add up to the result.
并可进一步作出光谱图像的等密度轮廓曲线和三维立体图形，大大提高了光谱底片数据处理的效率和精度。
In addition, the contour and 3D graph deduced from the image can also be produced. This code can greatly improve the efficiency and precision in film image data processing.
并可进一步作出光谱图像的等密度轮廓曲线和三维立体图形，大大提高了光谱底片数据处理的效率和精度。
In addition, the contour and 3D graph deduced from the image can also be produced. This code can greatly improve the efficiency and precision in film image data processing.
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