英语语法分析

Cyclopentanone ethylene ketal was synthesized with I_2 as catalyst.

以单质碘为催化剂合成了环戊酮乙二缩酮。

The cost was equivalent with cyclopentanone liquid phase oxo-process.

其成本与环戊酮液相氧化法相当。

Absorption spectra of three novel coumarin sensitizer incorporate benzylidene cyclopentanone moiety were studied.

比较研究了三种含苄叉环戊酮基团的新型香豆素类光敏染料。