我们预期这么浓的蒸气会扩散到固态硼的内部，然后产生颗粒状的硼化镁。

We expected that this dense vapor would diffuse into the solid boron, producing pellets of MgB2.

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在低磁场下，硼化镁的临界电流密度与三铌化锡相当，但是在较高的磁场下却下降得很快。

The critical current density of pure MgB2 is comparable to that of triniobium tin at low magnetic fields but falls off much more rapidly at higher fields.

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不出所料，在短短的两个小时内，我们发现这个制程确实能制造出零散烧结状的高纯度硼化镁颗粒(看起来像砂岩)。

Sure enough, we found that in as little as two hours this process produced very high purity MgB2 in the form of a loosely sintered pellet (like sandstone).

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