| 释义 |
molecular sieve
noun
: a crystalline substance (as a zeolite) that is characterized by pores of molecular dimensions and uniform size formed by heating to drive off the water of hydration and that by its ability to adsorb small molecules but not large ones can be used especially in separations (as of gases or liquids) based on differences in sizes of molecules or as a carrier (as of accelerators in rubber vulcanization) |