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| English | Russian |
| during hours of darkness | в тёмное время суток (Alex_Odeychuk) |
| full darkness TV ground surveillance | ТВ наблюдение за наземными целями в условиях полной темноты |
| hours of darkness | тёмное время суток (Alex_Odeychuk) |
| man-made darkness | искусственно созданная темнота (средство геофизической войны) |
| periods of darkness | тёмное время суток (Denis_Sakhno) |
| under cover of darkness | под покровом темноты |
| under cover of darkness | под покровом темноты (The division commander has directed that the 1st Engineer Battalion and the 1st Infantry move under cover of darkness from their present bivouacs, areas A and B, to areas C and D, beginning at 7:00 PM, 17 October) |