N-VAR
（纸张、塑料、金属等材质的）内衬，衬垫，衬层
You can use lining to refer to a layer of paper, plastic, metal, or another substance that is attached to the inside of something, for example in order to protect it.
例句
...brake linings...
刹车片
Moss makes an attractive lining to wire baskets.
用苔藓垫在铁丝篮里很漂亮。