cross section

• Образец или представление группы или вещи, показывающее все её типичные части или характеристики; также срез или разрез чего-либо для демонстрации внутренней структуры.

A sample or representation of a group or thing that shows all its typical parts or characteristics; also, a slice or cut through something to show its internal structure.

1. Representative sampleB2formal

   A small group that is representative of a larger population or variety.

   Репрезентативная выборка

   • The survey included a cross section of the population.
   • The class is a cross section of students from different backgrounds.
   • The study used a cross section of industries to gather data.

2. Slice or cutB1formal

   A surface or shape exposed by making a straight cut through something, especially at right angles to an axis.

   Поперечное сечение

   • The diagram shows a cross section of the human heart.
   • Geologists examined a cross section of the rock layers.
   • The cross section of the tree trunk reveals its age rings.