XPT, as it is called, is a roughly 2cm-thick sheet of silica particles glued together with a strong, heat-resistant resin.
因为被称为XPT材料，是一个大约2厘厚米的二氧化硅粒子的薄板，与强大的耐热树脂粘在一起。
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Created by the UK-based XPT (Rob Bevan and Tim Wright), it told its story with the reader, sending personalised emails and narrative video clips based on feedback to the site.