Terms containing symmetric elements

Subject	English	Russian
nano	rotationally-symmetric diffractive optical element	вращательно-симметричный ДОЭ
el.	symmetric characteristic circuit element	симметричный элемент
el.	symmetric characteristic circuit element	элемент цепи с симметричной характеристикой
math.	symmetric elements	симметрические элементы
math.	the inertia of a symmetric matrix is the triple whose elements are the number of positive, negative, and zero eigenvalues, counted with multiplicities	инерция матрицы