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взаимоочищение | шарошек бурового долота
| шарошка бурового долота | |
| O&G, oilfield. | drill bit roller cutter; drill bit rolling cutter; drilling bit roller cutter; drilling bit rolling cutter |
| шарошки бурового долота | |
| O&G, oilfield. | drill bit roller cutters; drill bit rolling cutters; drilling bit roller cutters |
| взаимоочищение: 4 phrases in 2 subjects |
| Oil / petroleum | 1 |
| Oilfields | 3 |