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单词 aerogel
释义 aero·gel
\ˈ ̷ ̷( ̷ ̷) ̷ ̷ˌ-\ noun
Etymology: aer- + gel
: a highly porous solid formed by replacement of liquid in a gel with a gas so that there is little shrinkage — see silica aerogel; compare xerogel
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