n. 密封；堵塞；补铸件的漏洞sp.动词seal的现在分词形式.sealing Noun the act of treating something to make it repel water sealing例句 用作名词(n.) Good sealing,wear-resising,longer service life.密封可靠，耐磨损，使用寿命长。 Flag must also be...

发布时间：2025-11-01 浏览量：4