释义 |
同位素 tóng wèi sù ☆☆☆☆☆n.名词⁰·⁰⁰⁰⁷ᴾᵃ¹³⁵¹⁰ 基本例句 isotopeisotopesisotopic element 氘氢的一种同位素,在其原子核内有一个质子和一个中子,其原子重量为2。014An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014. 发射出放射性粒子的同位素;发出热量的炉子Isotopes that emit radioactive particles; a stove emitting heat. 射气几种氡的同位素的放射性气体,是放射性物质衰变的产物Any of several radioactive gases that are isotopes of radon and are products of radioactive decay. 放射性碳碳的一种放射性同位素,尤指碳14A radioactive isotope of carbon, especially carbon14. |