Terms containing radius of a circle

Subject	English	Russian
math.	a circle of radius a with center at the point b	круг радиуса a с центром в точке b
math.	a particle moves along a circle of radius 1 centered at the coordinate origin	с центром
nautic.	radius of a circle	радиус окружности
Makarov.	radius of a circumscribed circle	радиус описанной окружности