英语语法分析

In this paper, we synthesized a series of phenoxy-(phenylamino) polycarboxylic compounds.

本论文合成了一系列苯氧基（苯胺基）多元羧酸化合物。

In the formula (1), R1 represents benzyl group or phenoxy methyl and m represents monovalent cation.

式(1)中，R1表示苄基或苯氧甲基。M表示一价的阳离子。

Method for preparing 1, 4-di (2, 4-diamino phenoxy) benzenoid form polyimide film for flexible copper clad plate.

柔性覆铜板用1,4 -双(2,4 -二氨基苯氧基)苯型聚酰亚胺薄膜的制备方法。