结果表明 ：其应力—应变曲线表现出屈服点低、连续屈服、没有明显的屈服点等特性 ；
The stress strain curves displayed the characteristics of low yield point, continuous yield and no obvious yield point.
业已观察到下屈服点比上屈服点易产生更大的散布度。
It was observed that the lower yield point was subject to a greater degree of scatter than that of the upper yield point.
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