I placed a sheet of plastic over the top of the container.

我在容器的上面盖了一层塑料纸。

《柯林斯英汉双解大词典》

Then we use the stamp to print them on, for instance, a sheet of plastic.

然后，我们就用这图章将硅电池印制在其他物体上，比如印制在一张塑料膜上。

youdao

A sheet of plastic holding bubbles of air which form a cushion of protection for packing fragile materials.

用来包装易碎物品的夹层胶料。 夹在胶料中的气珠就是包装的护垫。

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A stencil is a thin sheet of metal or plastic out of which a design has been cut.

VOA: special.2009.09.02

Ms Shand told the court that Zoe had been lying there with a sheet of plastic over her face and only a murderer would take the dreadful step of setting her on fire.

BBC: Zoe murder accused Robert Bayne 'guilty of atrocity'

The MirageTable uses a 3D-video projector to beam images onto a sheet of curved white plastic placed in front of the user.

BBC: MirageTable demonstration

But it is possible to lay down a thin layer of silicon on a flexible plastic sheet, through a process called vacuum deposition.

ECONOMIST: Just press print