But from another spectroscopic analysis, based on the electrons, they showed that its gold was an impure alloy, in contrast to the near 24-carat version of the metal used for coins made in Rome.

但是，根据另一项基于电子的光谱分析，他们表明黄金是一种不纯的合金， 这与罗马制造的硬币所用的近 24 克拉的金属形成鲜明对比。