防热层
fángrècéng
防热层 — fángrècéng
- a layer that prevents or reduces heat transfer; thermal-insulation or heat-shield layer
航天器外壳覆盖有防热层,以抵御重返大气层时的高温。 hángtiānqì wàiké fùgài yǒu fángrècéng yǐ dǐyù chóngfǎn dàqìcéng shí de gāowēn — The spacecraft's outer shell is covered with a thermal barrier layer to resist the high temperatures during re-entry.