| 释义 |
nucleon number =mass number 以上来源于:《21世纪大英汉词典》 nucleon numbern.=mass number详细释义源自:《新世纪英汉大词典》Collins外研社 n= mass number英英释义n.the sum of the number of neutrons and protons in an atomic nucleus同反义词同义词:mass numbernucleon number‘物理’=mass numbernucleon numbe |