NucleobasesEconomist⁵³⁵⁸¹⁺¹ 基本例句 核酸碱基¹⁰⁰ The group, based at Imperial College London, found some of the base building blocks for life, nucleobases, in dust from the Murchison meteorite which fell to Earth in1969. 研究小组由伦敦帝国学院创建,他们在1969年坠入地球的默奇森陨石尘埃中发现了碱基,这是构建生命的基本成分。 yeeyan Nucleobases and their analogs; Nucleosides, Nucleotides& Related Reagents; 核糖、核苷酸及其他类; chemicalbook