chemical modification的用法和樣例：
例句
- This research advance was summarized in synthetic methods of the isoflavone derivatives in chemical modification.
本文從異黃酮側鏈化學修飾出發綜述了該類化合物衍生物的合成研究。 - Pore and surface chemical modification technology of zeolite is an important way of second synthesis of molecular sieves.
沸石分子篩孔道和表面化學修飾是對分子篩進行二次合成的重要手段。
