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单词 atom
分类 翻译、意思、用法、释义、英译汉、汉译英、英汉双解词典
释义  Related topics: Physicsldoce_012_bat·om /ˈætəm/ ●●○ noun [countable]  1  HPthe smallest part of an element that can exist alone or can combine with other substances to form a molecule 原子 carbon atoms 碳原子atom of two atoms of hydrogen 两个氢原子 →5  See picture of neutron 中子, electron 电子, proton 质子2  AMOUNTa very small amount of something – used for emphasis 一点儿〔用于强调〕atom of There isn’t an atom of truth in it. 那里面没有丝毫的真实性。Examples from the Corpusatom• The valency of an atom in a covalent molecule is the number of electrons shared by the atom in forming the bond.• an atom of truth• In graphite the carbon atoms are arranged in flat hexagons layered on top of each other.• Quarks unite to form protons, neutrons and electrons, which in turn unite to form atoms.• The formula also shows the number of moles of atoms of each element in one mole of molecules.• Talk of probability waves and eigen values does not undermine the reality of atoms and molecules.Origin atom (1500-1600) Latin atomus, from Greek, from atomos “that cannot be divided”, from temnein “to cut”at·om nounChineseSyllable  of an that part the Corpus element smallest
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更新时间：2026/6/26 7:32:44