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| English | Russian |
| classical analysis concentrates its efforts on getting a closed form solution of | замкнутая форма решения (1) |
| concentrate attention on | сосредоточить внимание (The second part focuses on the Euler system of (...)) |
| concentrate on | концентрировать |
| concentrate on | остановиться |
| concentrate on | останавливаться |
| concentrate our attention on | сконцентрировать наше внимание на |