1) активность
2) деятельность; работа
3) действие
4) радиоактивность
5) бтх ферментативная активность
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no activity — режим бездействия, режим простоя ( оборудования )
- adsorption activity
- alpha activity
- antioxygenic activity
- background activity
- bactericidal activity
- beta activity
- business activities
- cleanup activities
- communication activity
- concurrent activities
- coolant activity
- craking activity
- docking activity
- drilling activity
- dummy activity
- emergency extravehicular activity
- environmental activity
- epithermal activity
- exploration activities
- extravehicular activity
- fired activity
- gamma activity
- induced activity
- initial testing activities
- interfacial activity
- intravehicular activity
- long-lived activity
- management activity
- manned space activities
- mass activity
- military space activities
- molecular activity
- nuclear activity
- on-orbit activity
- optical activity
- photochemical activity
- photographic activity
- repetitive activity
- residual activity
- routine activity
- second-order activity
- short-lived activity
- space commercial activities
- space station activities
- specific activity
- specific surface activity
- tariff coordinating activity
- thermal activity
- thunderstorm activity
- trace-level activity
- undocking activity
- unit-mass activity
- unmanned space activity
- voice activity
- water-related activities