They are made up from both of cubic and hexagonal diamond crystal structures, which are called a sort of intergrowth crystals.

除常见的立方金刚石结构外，还存在一种罕见的六方金刚石结构。它们通常共存在一个金刚石织构体中，形成共生晶体。

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Such designs were square, diamond, triangular or hexagonal shaped pellet areas.

这些设计是正方形的，菱形的，三角形的或六角形的小格区域。

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The presence of hexagonal BN was due to defects within the grain boundaries of the underlying polycrystalline diamond substrates.

而在含有大量缺陷的晶粒边界，存在六角氮化硼的成核与生长。

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