aerogel
noun [ C or U ] uk/ˈeə.rə.dʒel/ us/ˈer.ə.dʒel/
气凝胶
a solid material that is synthetic (= artificial, not found in nature), that has a very low density (= mass relative to its size), and that is made by replacing the liquid in a gel with a gas
When solidified, aerogels make good insulation for a spacecraft or aircraft. 凝固后，气凝胶可以为航天器或飞机提供良好的隔热效果。
Jackets lined with aerogel can keep you warm in temperatures of 50 below zero. 以气凝胶做内衬的夹克可以在零下50度的温度里保暖。
- More examples
- They discussed the possibility of using aerogels to insulate car doors.
- As part of her postdoctoral work in inorganic chemistry she began experimenting with aerogels.
- On board the space shuttle, aerogel collects samples of cosmic dust.
- In the 1980s, physics researchers learned that large tiles of silica aerogel could detect radiation.