This paper does research on the three dimensional turbulent flow fields of compressible air with highly rotation, using methods of mathematical analyze and CFD simulation.

本文以涡流管内可压缩气体三维强旋转湍流流场为研究对象，采用数学分析和数值模拟方法对涡流管内流场结构进行研究。

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Based on the correlation of tobacco primary-color signals, the optimization of tobacco signal threshold can be achieved by means of displacement, rotation, and two-dimensional fitting.

基于烟叶三基色信号存在的相关特性，采用二维相关拟合以及平移旋转方法，实现了烟叶信号的阈值优化。

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A mechanical model of two-dimensional cellular materials with negative Poisson's ratio, composed of partly re-entrant and partly regular hexagons, was proposed based on rotation mechanism.

基于旋转机制，提出了一种具有负泊松比效应的、由部分内凹以及部分规则六边形组成的二维多胞材料力学模型；

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