cross-section
noun [ C ] uk/ˈkrɒs.sek.ʃən/ us/ˈkrɑːs.sek.ʃən/
横截面（图），横断面（图），剖面（图）
something that has been cut in half so that you can see the inside, or a model or picture of this
a cross-section of the human heart 人体心脏剖面图
典型，代表
a small group that represents all of the different types within the total group
The demonstrators seemed to be from a wide cross-section of society. 示威者似乎是来自社会的各个阶层。