What's more, the various shapes and sizes of the black eggshell pottery goblets indicate they were not mass-produced articles.

更重要的是，这些蛋壳黑陶杯形状和大小各异，表明它们不是大规模生产的物品。

Other than the finely carved bronze and terracotta statues, the Etruscans are known for their bronze mirrors, gold jewelry, and their black pottery known as Bucchero.

除了精雕细琢的青铜和陶俑，伊特鲁里亚人以他们的铜镜、黄金首饰和被称为巴契罗的黑陶而闻名。

Part of the secret might also lie in the kilns used to fire them, the temperatures they could achieve, and the time these black eggshell pottery goblets spent inside them.

部分秘密可能还在于用来烧制它们的窑炉、它们能达到的温度，以及这些蛋壳黑陶杯在里面经烧制的时间。