The plastic liner is casted together with the concrete in one step.

塑料衬垫和混凝土被一个步骤浇铸完成。

youdao

The black plastic liner should be hanging out a foot or so on all sides.

贴在箱内的黑色塑料膜内衬应该长出一英尺左右翻挂在箱体四边。

youdao

Make sure the wood screws aren't too long and penetrate the plastic liner.

注意木螺钉不要太长，以免刺破塑料膜。

youdao

And if I did want the whole album, the expectation of the production savings (no liner notes to print, no plastic case, no shipping) creates an expectation that I will pay less for that, a perception that has driven down the price of CDs to compete with digital albums.

FORBES: What 'Hung' And iTunes Teach About Nick Bilton's "Me Economy"