sealedadj.封口的;密封的动词seal的过去式和过去分词.
sealn.封条;印章n.海豹v.密封;盖印;明确
sealed container气密封罐,密闭集装箱,密封容器
seal by B-ring[化] B型环密封
seal improvement密封改造
sealed headpiece密闭头盔
sealing adhesive封口胶
sealing concrete封混凝土
sealed-bearingn.油封轴承
sealcontact face密封面
sealing schedule密封程序
sealed reservoir封闭油气藏