通过X—射线、DSC等表征手段，我们对不同拉伸程度的薄膜进行了研究。
By employing the characterization methods of X-ray and DSC, this paper conducts a research on films of different stretch ratio.
从圆柱形零件的凸缘上和壁上的允许变形出发，获得了极限拉伸程度的计算公式。
The formulas for calculating top limitation of drawing originated from the deformation limits on the flange and the wall of cylindrical articles are developed.
这种瑜伽手法要求将面部肌肉最大程度拉伸，以此来舒缓压力并预防皱纹产生。
It's a yoga technique which requires facial muscles to be stretched as far as possible in order to relieve pressure and prevent wrinkles.
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