“torsion”的概念、定义、翻译、参考文献-科学参考

单词	torsion
释义	torsion [`tȯr·shǝn] ^MATHEMATICS The rate of change of the positive direction of the binormal of a space curve with respect to arc length along the curve; its sign is defined as positive if it is in the same direction as the principal normal, and negative if it is in the opposite direction. ^MECHANICS A twisting deformation of a solid body about an axis in which lines that were initially parallel to the axis become helices.
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