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| Russian | English |
| Система атомных часов в космосе | ACES: Atomic Clock Ensemble in Space (Atomic Clock Ensemble in Space (ACES) is a project led by the European Space Agency which will place ultra-stable atomic clocks on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas of research, including general relativity and string theory tests, time and frequency metrology, and very long baseline interferometry. AllaR) |
| трудоёмкость ТО в человеко-часах | maintenance man-hours |