noun
cross section; section; cut surface
The physical surface or shape visible when something is cut through, or a diagram showing that internal section. Common in technical, scientific, and everyday descriptions.
この図はエンジンの断面を示している。
This diagram shows a cross section of the engine.
ケーキを切ると、
When we cut the cake, a neat cross section was visible.
noun
profile; cross-section; aspect
Figurative use for a representative slice or revealing aspect of a society, group, era, or situation, rather like English 'a cross-section' or 'profile.'
この小説は現代社会の断面を描いている。
This novel depicts a cross-section of contemporary society.
調査結果から若者の生活の一断面が見えてくる。
The survey results reveal one aspect of young people's lives.