adj.取代的；代替的
动词substitute的过去式和过去分词.
A series of trichloromethyl substituted triazine compounds, as acid-generators were prepared. 制备了一系列的三氯甲基取代的三嗪类化合物。
One element may be substituted for another in a compound, the substituted element being set free. 在一种化合物里，一种元素可以取代另一种元素，而被取代的元素就被释出。
