英语语法分析

Disclosed is a layered composite system comprising one or several layers a made of an open-cell foam based on an aminoplast, and one or several layers b made of nonwoven fabric or fibrous tissue.

本发明公开了一种层状复合体系，包含由基于氨基塑料的开孔泡沫制成的一层或几层A及由非织造织物或纤维织物制成的一层或几层B。