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(PICA),是一种埋在酚树脂中的碳纤维交叉结构。
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(PICA),是一种埋在酚树脂中的碳纤维交叉结构。
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