幕布在剧院或大厅内隔开舞台和观众或作为背景幕的可移动遮蔽物或帷幕 The movable screen or drape in a theater or hall that separates the stage from the auditorium or that serves as a backdrop.
窗帘，门帘挂在窗户或其它开口处作为装饰物、遮光物或遮蔽物的织物 Material that hangs in a window or other opening as a decoration, shade, or screen.
遮蔽光或热的遮挡物 A screening against light or heat.
他给窗框上漆时，用遮蔽胶带把玻璃边缘贴住。 He put masking tape round the edges of the glass while he painted the window frame.