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机械工程 八面体 Such a complexant-assisted method could be extended to the other ferrite formation, which was proved as a general route for the synthesis of octahedron-like ferrite particles.5. 将此配位剂辅助合成法推广应用到其它铁氧体体系，结果都能够获得大量的尺寸均一的八面体颗粒，证实了该反应路线的普适性。
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The four-sided pyramids were essentially Temple complexes set as full octahedrons and used for healing, learning, regeneration and spiritual purposes. 四面的金字塔其实是八面体的神殿复合体，用于医疗，学习，再生和灵性的目的。 - 2
Since then, Seeman and other chemists have shown that they can use DNA to build really simple shapes such as cubes or octahedrons that are 1,000 times thinner than a human hair. 从那时起，Seeman和其他一些化学家开始向人们展示他们可以用DNA来构造极微小的东西。例如，比头发细1000倍的立方体和八面体。 - 3
Since then, Seeman and other chemists have shown that they can use DNA to build really simple shapes such as cubes or octahedrons that are 1, 000 times thinner than a human hair. 从那时起，Seeman和其他一些化学家开始向人们展示他们可以用DNA来构造极微小的东西。例如，比头发细1000倍的立方体和八面体。
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