化学系专业外语课件2.Chapter 1 The Chemical Elements and Their Relative Atomic Masses[精]
- chemical element 化学元素relative atomic mass 相对原子质量 atomic weight 原子量invarient 不变量
化学系专业外语课件2.Chapter 1 The Chemical Elements and Their Relative Atomic Masses[精]化学系专业外语课件2.Chapter 1 The Chemical Elements and Their Relative Atomic Masses[精]