1、We then flip down the top piece, peel back the backing paper from the film and cut it off.
之后我們將頂部翻轉(zhuǎn)過來，撕開貼膜背面的紙，將其剪掉。

2、If it's a smaller window you could remove the backing paper entirely.
如果窗戶較小，你可以將貼膜背面的紙全部撕掉。

3、The way of increasing the smoothness of the high-gloss aluminum foil backing paper was studied.
研究了提高高光澤度鋁箔襯紙表面平滑度的方法。

backing paper翻譯