What are rare earth metals? Why do we need them and for what? Do we need to care about this?
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- Опубликовано3 мая 2022 г., 14:51 UTC
- Длительность16 мин.
- ОграниченияБез ненормативной лексики
What are rare earth metals? Why do we need them and for what? Do we need to care about this?