positron

From Longman Dictionary of Contemporary Englishpositronpos‧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 chargeExamples 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)

单词	positron
释义	positron From Longman Dictionary of Contemporary Englishpositronpos‧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 chargeExamples 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)
随便看	guild guilder Guildford Four Guildford Four, the guildhall guile guile guileless guillemot Guillotin guillotine guilt guilt etc is not in vocabulary guilt feelings guilt into guilt into doing guilt ridden guilt somebody into doing something guilt somebody into something guilt trip guilt-ridden guilt-trip guiltless guiltridden guilttrip