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| Subject | English | Russian |
| tech. | dimensional number | размер трубы (MichaelBurov) |
| construct. | dimensional number | размерное число |
| tech. | dimensional number | диаметр трубы (MichaelBurov) |
| gen. | Dimensional Number | размер (DN: DN can be said to refer to Dimensional Number (DN), as in DN 25 means 25mm ART Vancouver) |
| math. | zero-dimensional Betti number | нульмерное число Бетти |