B-B fraction

• 丁组分

B-B fraction的用法和样例：

例句

1. The abstraction and analysis of compositions of carotene from Rhodopseudomonas Palustris strain B.
   类胡萝卜素的提取方法和组分进行了研究。
2. The second general problem of cell fractionation is the contamination of each fraction by others.
   细胞组分分离的第二个普遍问题是各组分的相互掺杂。