【机】 blank cap; blanking cover
build up; jam; stop up; wall up
【化】 blind plug; blockage; clog; clogging; clogup; plugging
about; annex; canopy; casing; cover; lid; shell; top; build
【化】 cap; cover; lid
【医】 cap; coping; operculum; roof; tegmen; tegmentum; veil
