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| Russian | English |
| в верхнем течении | on the upper course of the river (Andrey Truhachev) |
| в верхнем течении | on the upper reaches of a river (Andrey Truhachev) |
| в верхнем течении | at the upper reaches of a river (Andrey Truhachev) |
| в верхнем течении | along the upper reaches of a river (Andrey Truhachev) |