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| Subject | Russian | English |
| math. | закон быстроты изменения скорости тела | law of the rate of change of momentum of an object/a body (Второй закон Ньютона: Newton's Second Law. The rate of change of momentum of an object is directly proportional to the resultant force applied and is in the direction of the resultant force. Dinara Makarova) |
| gen. | скорость / быстрота изменения | rate of change |