a type of cloth that is loosely woven (= the threads are not pulled tightly together)

A loose-weave linen, scrim is brilliant at giving a final shine to windows and glassware. 松散编织亚麻布，也叫做“scrim”，非常适合用来给窗户和玻璃器皿增光添彩。

in a theatre, a large piece of this type of cloth that is hung on the stage and often painted to create a special effect or lit from behind so that you can see through it

A series of painted scrims and sets slide across the large stage, allowing the children to seem to fly against a backdrop of stars twinkling in the sky. 一系列彩绘的纱幕和布景在大舞台上滑过，让孩子们仿佛在天空中闪烁的星星背景中飞翔。

something that hides something else, makes it less clear, or influences the way that you see it

This is a gripping story about a psychiatrist's patient who is obsessed with the idea that what we call reality is only a thin scrim over a much darker world. 这是一个扣人心弦的故事，故事里一个精神病医生的病人固执的认为我们所说的现实只不过是一张覆盖在黑暗世界上的一层薄纱。

The movie Saving Private Ryan showed the second world war through a scrim of Vietnam movies.