synthesizing methods

• 合成方法

synthesizing methods的用法和样例：

例句

1. Recent methods of Nipagin esters were reviewed in the paper.
   对近年来尼泊金酯类催化合成方法进行评述。
2. A novel method for synthesizing the amino-sulfonic acid series amphoteric surfactants was developed.
   给出了氨基磺酸系两性表面活性剂的一种新合成方法。