electronic charge短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 电子电荷 Quantum chemical calculations of gossypol and thymine reveal that the net electronic charge distributions along the boldfaced line of their structural formula Fig.2 are just opposite in sign. 量子化学计算棉酚与胸腺嘧啶分子中的净电荷分布,发现沿两者结构式粗线上各原子的电荷恰好符号相反图2。 cnki