| NOUN | cognition | electron optics | the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields |
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| Meaning | The branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields. | |
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| Broader | electronics | The branch of physics that deals with the emission and effects of electrons and with the use of electronic devices |
| Spanish | electroóptica | |
| Catalan | electroòptica | |
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