| |||
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 |