只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.There are just four kinds: adenine, thymine, guanine and cytosine.摘要采用 反相 高效液相色谱法测定不同生境半夏和炮制半夏中鸟嘌呤核苷的含量.Guanosine contents of Pinellia Rhizoma in the different habitats and the processed were ...

“鸟嘌呤”的英语可以翻译为：[化] guanine，imidoxanthin ...