So plants could be packed tighter, doubling yield per acre, and multiple layers of dwarf crops could be grown per floor.

这样一来，植株就可以排列的更为紧密，每英亩产量也随之翻番，每一层楼内都可以种好几排矮株作物。

youdao

This 3-level low rise building comprises 6 units with 2 units per floor.

这是一幢楼高3层低密度住宅大厦，每层2个单位，共有6户。

youdao

Vitra contains only one apartment per floor-and each floor plan is unique.

一层楼只有一间公寓，每层的设计都别具一格。

youdao

and they have like, honestly 200 people per floor

那里每一层差不多有200人

住宿环境怎样？ - SpeakingMax英语口语达人

Yet inside Borders, I counted about five shoppers per floor, with another five at the coffee bar.

FORBES: Maybe Not So Crazy

Because space is at a premium, flats are the most common, with many buildings of 20 to 30 floors and four units per floor.

BBC: Living in: Hong Kong

Looking around the city's drinking mecca, Ginza, it's easy to see why: The blocks are filled with multistory buildings housing three or four bars per floor.

WSJ: Made Better in Japan