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单词 neutron
释义 neutron
n. an elementary particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
Phrases and idioms
neutron bomb a bomb producing neutrons and little blast, causing damage to life but little destruction to property. neutron star a very dense star composed mainly of neutrons.
Etymology: NEUTRAL + -ON
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更新时间:2024/11/13 8:56:51