used on the packaging of products to show that they are made from recycled materials that have been used once then treated so that they can be used againor to show that they can be recycled after used
用于产品的包装上,表明它们是由回收材料制成的,这些材料已经使用过一次,然后经过处理,可以再次使用,或者表明它们使用后可以回收
以上为机器翻译结果,长、整句建议使用 人工翻译 。