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sealer

美['siːlər] 英['siːlə(r)]

n. 密封层；盖印人；检验员；从事海豹狩猎的人或船

近义词：sealant，

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

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。

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