This is the 15147th most frequent Russian word.
полос
The word "полос" is incomplete in Russian; it seems to be part of "полоса," meaning "stripe," "band," or "zone."
Here, 'полосы' is used in the meaning of 'stripes', describing the visual patterns on the flag.
На флаге есть три полосы.
There are three stripes on the flag.
In this sentence, 'полосу' denotes a single band or streak of light, emphasizing its linear appearance.
Я увидел световую полосу в темном небе.
I saw a light stripe in the dark sky.
Here, 'полосы' refers to the lanes on a road, commonly used in traffic contexts.