scale函数，顾名思义，是实现放大绘图操作。
The scale function, as the name implies, magnifies drawing operations.
利用扩散率函数的特性，提出一种实现数字图像放大的新方法。
Based upon the property of diffusivity function, a new method to enlarge a digital image is proposed.
基于导出的设置MTMD时非对称结构扭转角位移传递函数，建立了扭转角位移动力放大系数解析式。
Based on the torsional displacement transfer function of the asymmetric structure with MTMD, the analytical expression is developed for the torsional displacement dynamic magnification factor.
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