active methylene group

• 活性亚甲基

active methylene group的用法和样例：

例句

1. One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group.
   活性亚甲基上的一个氢原子是被环氧基所取代的。
2. Kodak company describes open chain reactive methylene two-equivalent yellow-forming conplers.
   柯达叙述了一种直链的活性亚甲基两当量的黄成色剂。