求翻译：单套三层缠裹包装：内层用聚乙烯薄膜带或复合纸带，中层用紧固带，外层用防水渗透塑料带。是什么意思？

Single set of three-layer wrapped around wrapped packaging: inner or combined with polyethylene film tape, fastening Strip for middle, outer with waterproof permeable plastic belt.