Adsorption: Capability of a solid substance( adsorbent) to attract to its surface molecules of a gas or solution( adsorbate) with which it is in contact. 吸附一切固态物质把与之接触的气体或溶液的分子吸在表面上的能力。
adsorbate
[ noun ]
a material that has been or is capable of being adsorbed
<noun.substance> [ adj ]
capable of being adsorbed or accumulated on a surface of a solid