| 释义 |
heat shieldn.（名词）- A barrier that prevents the heating of a space or an object by absorbing, reflecting, or dissipating external heat, especially a protective structure on a spacecraft or missile that dissipates heat on atmospheric reentry by melting and vaporizing.隔热屏，挡热板，挡热罩：通过吸收、反射、散射等方式来阻止自某一空间或物体的外部热量的一道屏障，尤指宇宙飞船或导弹上的一种保护性装置，其通过熔化或蒸发来消散重新进入大气层所产生的热量
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