抛物面一种有与单坐标轴平行的抛物截面和与该轴垂直的椭圆截面的平面。

A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.

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这将检测到大约 63 个双坐标轴空间移位，这与膝上型计算机在处于运行状态时被放在典型的单肩背膝上型计算机包中的情况一致。

This will pick up about 63 dual-axis dimensional shifts, consistent with the laptop being running while in an over-the-shoulder typical laptop bag.

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基本思想是首先利用圆盘状单裂纹之解以及局部坐标展开法将裂纹群问题化为求解一组线代数方程。

The basic idea is to use the single crack solution and the expansions of the local coordinates to reduce the complicated problem into a set of linear algebraic equations.

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