They are simply stacked one on top of another like a pile of hats.

它们就像一堆帽子一样简单地摞在一起。

youdao

Books were piled on top of one another.

书籍一本一本地摞在一起。

《牛津词典》

Wearing loose, lightweight clothes, one layer on top of another, is better than a single heavy layer of clothing.

把宽松、把轻巧的衣服一层套到另一层上比只穿一层厚重的衣服更好。

youdao

They have roots that stand in saltwater and look like cablesor ropes laid one on top of another.

VOA: special.2010.04.20

The thing is for these sorts of experiments there is a lot of control, so something that's a square in one movie will be a triangle in another movie; something that's on the top in one movie will be on the bottom in another movie.

此类实验需要控制许多因素,来保证某物在一部影片中以正方形呈现,而在另一部影片中以三角形呈现,某物在一部影片的上方呈现,而在另一部影片的下方呈现

耶鲁公开课 - 心理学导论课程节选

L is for layers.Wearing loose, lightweight clothes, one layer on top of another, is better than wearing a single heavy layer of clothing.

VOA: special.2009.12.23

They are simply stacked one on top of another like a pile of hats.

ECONOMIST: AN ENGINEERING MYSTERY

The difference, he said, is that unlike in an apartment, the rooms are stacked one on top of another.

WSJ: Side by Side Homes on Upper East Side Go on Market Together for $11.95 Million

The FCC team found that stacking the coatings one on top of another enhanced the anti-reflective properties of each layer.

CNN: New nano coating boosts solar efficiency