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| English | Russian |
| diurnal birds of prey | дневные хищные птицы (Falconiformes) |
| diurnal birds of prey | соколообразные (Falconiformes) |
| diurnal rhythm | дневной ритм |
| diurnal temperature variations | суточные изменения температуры (investigated the impact of diurnal temperature variations on the ice surface ablation rate – Aberystwyth University Tamerlane) |