释义 |
atomic mass unit noun[ C ] chemistry specializeduk /əˌtɒm.ɪk ˈmæs ˌjuː.nɪt/ us /əˌtɑː.mɪk ˈmæs ˌjuː.nɪt/(abbreviationu) a unit used for measuring atomic mass, equal to one twelfth of the mass of an atom of carbon in its commonest form, carbon-12原子质量单位(等于碳-12原子质量的十二分之一) SMART Vocabulary: related words and phrases Measurements of weight & mass -pounder atomic mass BMI body mass index bulk density carat centigram ct G, g gm hundredweight kilogram lb microgram ounce oz pound st talent ton
atomic mass unit | American Dictionary atomic mass unit noun[ C ] us/əˈtɑm·ɪk ˈmæs ˌju·nɪt/ chemistry, physics one-twelfth the mass of one atom of carbon |