量子引力理论指出时空结构具有一个由一维量子线编织成的“原子”几何图。
Quantum-gravity theory indicates that the fabric of space-time has an "atomic" geometry that is woven with one-dimensional quantum threads.
建立了该型线的基本几何理论。
应用数值分析和计算几何理论，根据船体首部线型特点，建立首柱轮廓线数学模型；
Applying theories of numerical analysis and higher geometry, the corresponding mathematical model of stem line is established according to different stems.
建立了该型线的基本几何理论，推导了工作腔容积。
The basic geometrical theory of the profile is established and the working chamber volumes are also derived.
结合悬链线理论和几何非线性有限元方法，对空间缆索自锚式悬索桥成桥状态的确定方法进行了研究。
The catenary theory and geometrical nonlinear finite element method were adopted in determining the dead-load state of self-anchored suspension bridge with spatial cables.
运用几何光学测量物体尺寸的理论和方法，设计了一种基于线阵图像传感器的线径测量系统中的成像系统。
The general theory and methods from geometrical optics to measure the dimension of an object were applied to design a diameter measuring system, which was based on a linear array image sensor.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
Equation about isometric polygon curve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
Equation about isometric polygon curve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
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