- symmetric triplet
- симметричный триплет
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
Mathematics of Sudoku — The class of Sudoku puzzles consists of a partially completed row column grid of cells partitioned into N regions each of size N cells, to be filled in using a prescribed set of N distinct symbols (typically the numbers {1, ..., N}), so that each … Wikipedia
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