The green ring structure near the center of the image is about 77 light-years across.
图片中间的绿色环状结构的跨度大概有77光年。
Adenine has a purine ring structure.
腺嘌呤具有嘌呤环的结构。
Cephalotaxine is one compound of five-fused ring structure.
三尖杉碱具有五元稠环结构。
Cephalotaxine is one compound of five-fused ring structure.
三尖杉碱具有五元稠环结构。
应用推荐