Terms for subject Mathematics containing ch'a

English	Russian
the estimating theorem which is described in Ch. 2 gives a partial answer to this problem	частичный ответ
the estimating theorem which is described in Ch. 2 gives a partial answer to this problem	даёт частичный ответ для этой проблемы
the idea of estimation which is described in Ch. 2 gives a partial answer to this problem	описанная в Гл. 2