结晶性的塑料受拉伸时，晶体会排列整齐，强度因此增加。
When crystallIne film is stretched, crystals will align themselves In the stretch direction, IncreasIng the film strength.
另外，样品制备时，随着相对湿度的增加，测得的碳纤维拉伸强度逐渐降低。
In addition, CF tensile strength decreased with relative humidity during preparation of specimens.
在您添加文本时，矩形的高度将随之增加。拉伸一侧即可改变宽度。
As you add text, the rectangle's height increases. Vary the width by stretching a side.
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