The leading candidate for Orion's base heat shield is a material called PICA (phenolic impregnated carbon ablator).

目前猎户座底部防热盾的首选是酚充填碳烧蚀挡板材料（PICA），是一种埋在酚树脂中的碳纤维交叉结构。

The experimental results of low temperature ablator (beeswax and camphor) tests in the hypersonic wind Tunnel are presented in this paper.

本文给出了低温烧蚀材料的高超声速风洞烧蚀实验研究的结果。