结果表明：经电脉冲处理的纯铜再结晶过程向高温区推移，使纯铜的热稳定性、 耐热性能得到了改善。

The results show that the recrystallizing temperature of pure copper are raised to a higher temperature range, which improves the thermal stability and bearing resistance to high temperature.

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科学家们使物质转化为纯能量，爆破了第一枚原子弹。

Scientists transmuted matter into pure energy and exploded the first atomic bomb.

《柯林斯英汉双解大词典》

不过，我们可就已知的人体营养需要来评估这种饮食，以便更好地了解得当的生机纯素饮食使健康受益的方法。

We can, however, evaluate such diets against known human nutritional requirements to gain a better understanding of the ways in which appropriate raw vegan diets could benefit health.

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