吸热

xī rè fǎn yìng

吸热反应

endothermic reaction

shēn sè de biǎo miàn xī rè

深色的表面吸热。

Darker surfaces absorb heat.

tā shòu rè shí xī rè shī shuǐ xié zhù péng zhàng gé rè

它受热时吸热失水，协助膨胀隔热。

When heated, it absorbs heat but dehydrates, so as to assist expansion heat insulation.