单词：sealants
音标：['si:lænts] ；
n. 密封剂( sealant的复数形式 )
n. a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)
sealants的用法和样例：
例句
- The preparation of water swelling polyurethane sealants was introduced in the paper.介绍了双液型遇水膨胀聚氨酯密封胶的研究。