èr​yuán

binary

二元 èr​yuán
binary adjective
involving two variables or components, especially in mathematics, logic, or computer science

This is a linear equation with two variables.

duality adjective
the state of being dual or bipolar; a system or concept consisting of two distinct parts or principles

This economic model shows a clear dual structure between urban and rural areas.

Frequency

Movie subtitles
0.480 per million appears in 0% of films
Written text
3.24 per million

Sources

Definitions
CC-CEDICT