“mass number”的概念、定义、翻译、参考文献-科学参考

单词	mass number
释义	mass number Encyclopedia 理学质量数释 mass number质量数原子核内质子数Z和中子数N的总和。通常用符号A来表示，按照规定，质量数写在元素符号的左上方，核电荷数写在符号的左下方，如、。 Physics 原子核物理学、粒子物理学原子核物理学 mass number质量数＞原子核物理学＞原子核基本性质＞释义 mass number质量数 mass number质量数^†
随便看	principal base principal bending moment principal block principal branch principal bronchus principal bundle principal bundle connection principal category principal cell principal character principal circle principal class principal coefficient of contraction principal cohomology class principal coincidence curve principal component principal component analysis principal component analysis and singular value decomposition principal component analysis (PCA) principal component analysis, PCA principal component analysis,PCA principal component clustering principal component discrimination principal component estimate principal component estimate of the coefficients in linear regression model

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