Meaning of SCRIM in English

[scrim] n [origin unknown] (1792) 1: a durable plain-woven usu. cotton fabric for use in clothing, curtains, building, and industry

2: a theater drop that appears opaque when a scene in front is lighted and transparent or translucent when a scene in back is lighted

3: something likened to a theater scrim

Merriam-Webster English vocab.      Английский словарь Merriam Webster.