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| English | Russian |
| arrow of time | направление времени (or time's arrow – a concept involving the "one-way direction" or "asymmetry" of time Val_Ships) |
| arrow of time | ось времени (elenpolen) |
| electro-dynamic time arrow | электродинамическая стрела времени |
| parallel arrows | знак параллельности |
| time's arrow | направление времени (a concept developed in 1927 by the British astronomer Arthur Eddington Val_Ships) |