sealer
n. 密封层；盖印人；检验员；从事海豹狩猎的人或船
近义词：sealant，
英英释义
Noun
- 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)
- an official who affixes a seal to a document
例句
用作名词(n.)
- Remove sealer from axle tube to housing junction, if necessary.如有必要，拆卸轴管和轴管接头间的密封件。