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remain functional (Alexander Demidov); remain active (YGA) | |||
hold down | |||
survive; ensure safe operation (LyuFi) |
сохранять работоспособность: 12 phrases in 7 subjects |
Astronautics | 1 |
Aviation | 1 |
Energy industry | 3 |
Makarov | 3 |
Nanotechnology | 1 |
Oil / petroleum | 2 |
Quality control and standards | 1 |