... 基干网络服务 backbone network service 骨干提供者 backbone provider 基干环 backbone ring ...
基于8个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
In particular, for polymers with the aromatic groups along the polymer backbone generally at least about 55 percent of the aromatic ring positions are fluorinated.
尤其，对于沿着聚合物主链带有芳基的聚合物通常有至少约55%的芳环位置被氟化。
youdao
应用推荐
模块上移
模块下移
不移动