Double layers of protection on the hands.

手上要有两。

That was made of a double layer of very strong glass.

它由强硬的玻璃制成。

It's folded which means there's double layer of crunch happening.

它是折叠的，这意味着发生了嘎吱声。

See, cells are surrounded by a membrane: a double layer of fatty molecules which keeps their insides in and their outsides out.

这是一脂肪分子，将内外分隔开来。

The suit's sleeves, bottom of the tunic, and boots all extend under the upper layer, to give you double layered protection in several vital areas.

西装的袖子、束腰外衣的底部和靴子都延伸到上之下，在几个重要区域为您提保。

I'm smooshing it all together, rolling it into a sausage in a double layer of cling film, and popping it into the freezer to set up while I do everything else.

我把它们揉成一团，用保鲜膜卷成香肠，然后在我做其他事情期间把它放进冰箱里冷藏起来。