| 单词 |
positron |
| 释义 |
pos·i·tron /ˈpɒzətrɒn $ ˈpɑːzətrɑːn/ noun [countable] technical a very small piece of matter that has the same mass as an electron but has a positive electrical charge 正电子Examples from the Corpuspositron• When an electron collides with a positron the two particles disappear, or annihilate, to create a high-energy photon.• The Dark Era begins when space is dominated by tiny particles such as photons, electrons and positrons.Origin positron (1900-2000) positive + -tron (as in electron)pos·i·tron nounChineseSyllable a matter has that very same of piece Corpus the small |
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- headwaters
- headway
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- headword
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- heady
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- health
- health and safety
- health-and-safety
- health and safety at work act
- health-and-safety-at-work-act
- Health and Safety at Work Act, the
- health and safety executive
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