数值计算表明，不论是二维还是三维铁电系统，其铁电畴反转过程中产生的开关电流都随系统尺寸减少而下降，开关时间随系统尺寸减少而缩短。

Computational results indicate that, for both systems, the switching current drops with decreasing system size and the switching time shortens as the system size decreases.

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维尔博尔德和他的同事们集中研究了古代格陵兰岩石里钨的同位素，它们同黄金一样，也具有粘接铁的吸引力。

Willbold and his colleagues concentrated on investigating the ancient Greenland rocks for isotopes of tungsten, a metal that, like gold, has an affinity for bonding with iron.

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至于为什么会选毛豆，那是因为毛豆富含食物纤维，铁，蛋白质，磷，维素B1和铜，它还是很好的叶酸，维生素K与锰的来源。

Of interest would be the edamame, which is packed with dietary fiber, iron, protein, phosphorus, thiamin and copper, and a very good source of folate, Vitamin K and manganese.

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